19481280

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:263

約数の個数: 224

約数和(自身を含む): 76468224

約数和(自身を除く): 56986944

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 52, 56, 60, 64, 65, 70, 78, 80, 84, 91, 96, 104, 105, 112, 120, 130, 140, 156, 160, 168, 182, 192, 195, 208, 210, 223, 224, 240, 260, 273, 280, 312, 320, 336, 364, 390, 416, 420, 446, 448, 455, 480, 520, 546, 560, 624, 669, 672, 728, 780, 832, 840, 892, 910, 960, 1040, 1092, 1115, 1120, 1248, 1338, 1344, 1365, 1456, 1560, 1561, 1680, 1784, 1820, 2080, 2184, 2230, 2240, 2496, 2676, 2730, 2899, 2912, 3120, 3122, 3345, 3360, 3568, 3640, 4160, 4368, 4460, 4683, 5352, 5460, 5798, 5824, 6240, 6244, 6690, 6720, 7136, 7280, 7805, 8697, 8736, 8920, 9366, 10704, 10920, 11596, 12480, 12488, 13380, 14272, 14495, 14560, 15610, 17394, 17472, 17840, 18732, 20293, 21408, 21840, 23192, 23415, 24976, 26760, 28990, 29120, 31220, 34788, 35680, 37464, 40586, 42816, 43485, 43680, 46384, 46830, 49952, 53520, 57980, 60879, 62440, 69576, 71360, 74928, 81172, 86970, 87360, 92768, 93660, 99904, 101465, 107040, 115960, 121758, 124880, 139152, 149856, 162344, 173940, 185536, 187320, 202930, 214080, 231920, 243516, 249760, 278304, 299712, 304395, 324688, 347880, 374640, 405860, 463840, 487032, 499520, 556608, 608790, 649376, 695760, 749280, 811720, 927680, 974064, 1217580, 1298752, 1391520, 1498560, 1623440, 1948128, 2435160, 2783040, 3246880, 3896256, 4870320, 6493760, 9740640, 19481280]

約数ペア:

[(1, 19481280), (2, 9740640), (3, 6493760), (4, 4870320), (5, 3896256), (6, 3246880), (7, 2783040), (8, 2435160), (10, 1948128), (12, 1623440), (13, 1498560), (14, 1391520), (15, 1298752), (16, 1217580), (20, 974064), (21, 927680), (24, 811720), (26, 749280), (28, 695760), (30, 649376), (32, 608790), (35, 556608), (39, 499520), (40, 487032), (42, 463840), (48, 405860), (52, 374640), (56, 347880), (60, 324688), (64, 304395), (65, 299712), (70, 278304), (78, 249760), (80, 243516), (84, 231920), (91, 214080), (96, 202930), (104, 187320), (105, 185536), (112, 173940), (120, 162344), (130, 149856), (140, 139152), (156, 124880), (160, 121758), (168, 115960), (182, 107040), (192, 101465), (195, 99904), (208, 93660), (210, 92768), (223, 87360), (224, 86970), (240, 81172), (260, 74928), (273, 71360), (280, 69576), (312, 62440), (320, 60879), (336, 57980), (364, 53520), (390, 49952), (416, 46830), (420, 46384), (446, 43680), (448, 43485), (455, 42816), (480, 40586), (520, 37464), (546, 35680), (560, 34788), (624, 31220), (669, 29120), (672, 28990), (728, 26760), (780, 24976), (832, 23415), (840, 23192), (892, 21840), (910, 21408), (960, 20293), (1040, 18732), (1092, 17840), (1115, 17472), (1120, 17394), (1248, 15610), (1338, 14560), (1344, 14495), (1365, 14272), (1456, 13380), (1560, 12488), (1561, 12480), (1680, 11596), (1784, 10920), (1820, 10704), (2080, 9366), (2184, 8920), (2230, 8736), (2240, 8697), (2496, 7805), (2676, 7280), (2730, 7136), (2899, 6720), (2912, 6690), (3120, 6244), (3122, 6240), (3345, 5824), (3360, 5798), (3568, 5460), (3640, 5352), (4160, 4683), (4368, 4460)]