19841640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:136

約数の個数: 256

約数和(自身を含む): 77414400

約数和(自身を除く): 57572760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 23, 24, 26, 28, 30, 35, 39, 40, 42, 46, 52, 56, 60, 65, 69, 70, 78, 79, 84, 91, 92, 104, 105, 115, 120, 130, 138, 140, 156, 158, 161, 168, 182, 184, 195, 210, 230, 237, 260, 273, 276, 280, 299, 312, 316, 322, 345, 364, 390, 395, 420, 455, 460, 474, 483, 520, 546, 552, 553, 598, 632, 644, 690, 728, 780, 790, 805, 840, 897, 910, 920, 948, 966, 1027, 1092, 1106, 1185, 1196, 1288, 1365, 1380, 1495, 1560, 1580, 1610, 1659, 1794, 1817, 1820, 1896, 1932, 2054, 2093, 2184, 2212, 2370, 2392, 2415, 2730, 2760, 2765, 2990, 3081, 3160, 3220, 3318, 3588, 3634, 3640, 3864, 4108, 4186, 4424, 4485, 4740, 4830, 5135, 5451, 5460, 5530, 5980, 6162, 6279, 6440, 6636, 7176, 7189, 7268, 8216, 8295, 8372, 8970, 9085, 9480, 9660, 10270, 10465, 10902, 10920, 11060, 11960, 12324, 12558, 12719, 13272, 14378, 14536, 15405, 16590, 16744, 17940, 18170, 19320, 20540, 20930, 21567, 21804, 22120, 23621, 24648, 25116, 25438, 27255, 28756, 30810, 31395, 33180, 35880, 35945, 36340, 38157, 41080, 41860, 43134, 43608, 47242, 50232, 50876, 54510, 57512, 61620, 62790, 63595, 66360, 70863, 71890, 72680, 76314, 83720, 86268, 94484, 101752, 107835, 109020, 118105, 123240, 125580, 127190, 141726, 143780, 152628, 165347, 172536, 188968, 190785, 215670, 218040, 236210, 251160, 254380, 283452, 287560, 305256, 330694, 354315, 381570, 431340, 472420, 496041, 508760, 566904, 661388, 708630, 763140, 826735, 862680, 944840, 992082, 1322776, 1417260, 1526280, 1653470, 1984164, 2480205, 2834520, 3306940, 3968328, 4960410, 6613880, 9920820, 19841640]

約数ペア:

[(1, 19841640), (2, 9920820), (3, 6613880), (4, 4960410), (5, 3968328), (6, 3306940), (7, 2834520), (8, 2480205), (10, 1984164), (12, 1653470), (13, 1526280), (14, 1417260), (15, 1322776), (20, 992082), (21, 944840), (23, 862680), (24, 826735), (26, 763140), (28, 708630), (30, 661388), (35, 566904), (39, 508760), (40, 496041), (42, 472420), (46, 431340), (52, 381570), (56, 354315), (60, 330694), (65, 305256), (69, 287560), (70, 283452), (78, 254380), (79, 251160), (84, 236210), (91, 218040), (92, 215670), (104, 190785), (105, 188968), (115, 172536), (120, 165347), (130, 152628), (138, 143780), (140, 141726), (156, 127190), (158, 125580), (161, 123240), (168, 118105), (182, 109020), (184, 107835), (195, 101752), (210, 94484), (230, 86268), (237, 83720), (260, 76314), (273, 72680), (276, 71890), (280, 70863), (299, 66360), (312, 63595), (316, 62790), (322, 61620), (345, 57512), (364, 54510), (390, 50876), (395, 50232), (420, 47242), (455, 43608), (460, 43134), (474, 41860), (483, 41080), (520, 38157), (546, 36340), (552, 35945), (553, 35880), (598, 33180), (632, 31395), (644, 30810), (690, 28756), (728, 27255), (780, 25438), (790, 25116), (805, 24648), (840, 23621), (897, 22120), (910, 21804), (920, 21567), (948, 20930), (966, 20540), (1027, 19320), (1092, 18170), (1106, 17940), (1185, 16744), (1196, 16590), (1288, 15405), (1365, 14536), (1380, 14378), (1495, 13272), (1560, 12719), (1580, 12558), (1610, 12324), (1659, 11960), (1794, 11060), (1817, 10920), (1820, 10902), (1896, 10465), (1932, 10270), (2054, 9660), (2093, 9480), (2184, 9085), (2212, 8970), (2370, 8372), (2392, 8295), (2415, 8216), (2730, 7268), (2760, 7189), (2765, 7176), (2990, 6636), (3081, 6440), (3160, 6279), (3220, 6162), (3318, 5980), (3588, 5530), (3634, 5460), (3640, 5451), (3864, 5135), (4108, 4830), (4186, 4740), (4424, 4485)]