123915720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 256

約数和(自身を含む): 435456000

約数和(自身を除く): 311540280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 19, 20, 23, 24, 30, 34, 38, 40, 46, 51, 57, 60, 68, 69, 76, 85, 92, 95, 102, 114, 115, 120, 136, 138, 139, 152, 170, 184, 190, 204, 228, 230, 255, 276, 278, 285, 323, 340, 345, 380, 391, 408, 417, 437, 456, 460, 510, 552, 556, 570, 646, 680, 690, 695, 760, 782, 834, 874, 920, 969, 1020, 1112, 1140, 1173, 1292, 1311, 1380, 1390, 1564, 1615, 1668, 1748, 1938, 1955, 2040, 2085, 2185, 2280, 2346, 2363, 2584, 2622, 2641, 2760, 2780, 3128, 3197, 3230, 3336, 3496, 3876, 3910, 4170, 4370, 4692, 4726, 4845, 5244, 5282, 5560, 5865, 6394, 6460, 6555, 7089, 7429, 7752, 7820, 7923, 8340, 8740, 9384, 9452, 9591, 9690, 10488, 10564, 11730, 11815, 12788, 12920, 13110, 13205, 14178, 14858, 15640, 15846, 15985, 16680, 17480, 18904, 19182, 19380, 21128, 22287, 23460, 23630, 25576, 26220, 26410, 28356, 29716, 31692, 31970, 35445, 37145, 38364, 38760, 39615, 44574, 44897, 46920, 47260, 47955, 52440, 52820, 54349, 56712, 59432, 60743, 63384, 63940, 70890, 74290, 76728, 79230, 89148, 89794, 94520, 95910, 105640, 108698, 111435, 121486, 127880, 134691, 141780, 148580, 158460, 163047, 178296, 179588, 182229, 191820, 217396, 222870, 224485, 242972, 269382, 271745, 283560, 297160, 303715, 316920, 326094, 359176, 364458, 383640, 434792, 445740, 448970, 485944, 538764, 543490, 607430, 652188, 673455, 728916, 815235, 891480, 897940, 911145, 1032631, 1077528, 1086980, 1214860, 1304376, 1346910, 1457832, 1630470, 1795880, 1822290, 2065262, 2173960, 2429720, 2693820, 3097893, 3260940, 3644580, 4130524, 5163155, 5387640, 6195786, 6521880, 7289160, 8261048, 10326310, 12391572, 15489465, 20652620, 24783144, 30978930, 41305240, 61957860, 123915720]

約数ペア:

[(1, 123915720), (2, 61957860), (3, 41305240), (4, 30978930), (5, 24783144), (6, 20652620), (8, 15489465), (10, 12391572), (12, 10326310), (15, 8261048), (17, 7289160), (19, 6521880), (20, 6195786), (23, 5387640), (24, 5163155), (30, 4130524), (34, 3644580), (38, 3260940), (40, 3097893), (46, 2693820), (51, 2429720), (57, 2173960), (60, 2065262), (68, 1822290), (69, 1795880), (76, 1630470), (85, 1457832), (92, 1346910), (95, 1304376), (102, 1214860), (114, 1086980), (115, 1077528), (120, 1032631), (136, 911145), (138, 897940), (139, 891480), (152, 815235), (170, 728916), (184, 673455), (190, 652188), (204, 607430), (228, 543490), (230, 538764), (255, 485944), (276, 448970), (278, 445740), (285, 434792), (323, 383640), (340, 364458), (345, 359176), (380, 326094), (391, 316920), (408, 303715), (417, 297160), (437, 283560), (456, 271745), (460, 269382), (510, 242972), (552, 224485), (556, 222870), (570, 217396), (646, 191820), (680, 182229), (690, 179588), (695, 178296), (760, 163047), (782, 158460), (834, 148580), (874, 141780), (920, 134691), (969, 127880), (1020, 121486), (1112, 111435), (1140, 108698), (1173, 105640), (1292, 95910), (1311, 94520), (1380, 89794), (1390, 89148), (1564, 79230), (1615, 76728), (1668, 74290), (1748, 70890), (1938, 63940), (1955, 63384), (2040, 60743), (2085, 59432), (2185, 56712), (2280, 54349), (2346, 52820), (2363, 52440), (2584, 47955), (2622, 47260), (2641, 46920), (2760, 44897), (2780, 44574), (3128, 39615), (3197, 38760), (3230, 38364), (3336, 37145), (3496, 35445), (3876, 31970), (3910, 31692), (4170, 29716), (4370, 28356), (4692, 26410), (4726, 26220), (4845, 25576), (5244, 23630), (5282, 23460), (5560, 22287), (5865, 21128), (6394, 19380), (6460, 19182), (6555, 18904), (7089, 17480), (7429, 16680), (7752, 15985), (7820, 15846), (7923, 15640), (8340, 14858), (8740, 14178), (9384, 13205), (9452, 13110), (9591, 12920), (9690, 12788), (10488, 11815), (10564, 11730)]