20814035840

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{108769}}^1$

素因数の和:108824

約数の個数: 128

約数和(自身を含む): 55916481600

約数和(自身を除く): 35102445760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 128, 130, 160, 184, 208, 230, 260, 299, 320, 368, 416, 460, 520, 598, 640, 736, 832, 920, 1040, 1196, 1472, 1495, 1664, 1840, 2080, 2392, 2944, 2990, 3680, 4160, 4784, 5980, 7360, 8320, 9568, 11960, 14720, 19136, 23920, 38272, 47840, 95680, 108769, 191360, 217538, 435076, 543845, 870152, 1087690, 1413997, 1740304, 2175380, 2501687, 2827994, 3480608, 4350760, 5003374, 5655988, 6961216, 7069985, 8701520, 10006748, 11311976, 12508435, 13922432, 14139970, 17403040, 20013496, 22623952, 25016870, 28279940, 32521931, 34806080, 40026992, 45247904, 50033740, 56559880, 65043862, 69612160, 80053984, 90495808, 100067480, 113119760, 130087724, 160107968, 162609655, 180991616, 200134960, 226239520, 260175448, 320215936, 325219310, 400269920, 452479040, 520350896, 650438620, 800539840, 904958080, 1040701792, 1300877240, 1601079680, 2081403584, 2601754480, 4162807168, 5203508960, 10407017920, 20814035840]

約数ペア:

[(1, 20814035840), (2, 10407017920), (4, 5203508960), (5, 4162807168), (8, 2601754480), (10, 2081403584), (13, 1601079680), (16, 1300877240), (20, 1040701792), (23, 904958080), (26, 800539840), (32, 650438620), (40, 520350896), (46, 452479040), (52, 400269920), (64, 325219310), (65, 320215936), (80, 260175448), (92, 226239520), (104, 200134960), (115, 180991616), (128, 162609655), (130, 160107968), (160, 130087724), (184, 113119760), (208, 100067480), (230, 90495808), (260, 80053984), (299, 69612160), (320, 65043862), (368, 56559880), (416, 50033740), (460, 45247904), (520, 40026992), (598, 34806080), (640, 32521931), (736, 28279940), (832, 25016870), (920, 22623952), (1040, 20013496), (1196, 17403040), (1472, 14139970), (1495, 13922432), (1664, 12508435), (1840, 11311976), (2080, 10006748), (2392, 8701520), (2944, 7069985), (2990, 6961216), (3680, 5655988), (4160, 5003374), (4784, 4350760), (5980, 3480608), (7360, 2827994), (8320, 2501687), (9568, 2175380), (11960, 1740304), (14720, 1413997), (19136, 1087690), (23920, 870152), (38272, 543845), (47840, 435076), (95680, 217538), (108769, 191360)]