81803640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{277}}^1$

素因数の和:421

約数の個数: 128

約数和(自身を含む): 259407360

約数和(自身を除く): 177603720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 107, 115, 120, 138, 184, 214, 230, 276, 277, 321, 345, 428, 460, 535, 552, 554, 642, 690, 831, 856, 920, 1070, 1108, 1284, 1380, 1385, 1605, 1662, 2140, 2216, 2461, 2568, 2760, 2770, 3210, 3324, 4155, 4280, 4922, 5540, 6371, 6420, 6648, 7383, 8310, 9844, 11080, 12305, 12742, 12840, 14766, 16620, 19113, 19688, 24610, 25484, 29532, 29639, 31855, 33240, 36915, 38226, 49220, 50968, 59064, 59278, 63710, 73830, 76452, 88917, 95565, 98440, 118556, 127420, 147660, 148195, 152904, 177834, 191130, 237112, 254840, 295320, 296390, 355668, 382260, 444585, 592780, 681697, 711336, 764520, 889170, 1185560, 1363394, 1778340, 2045091, 2726788, 3408485, 3556680, 4090182, 5453576, 6816970, 8180364, 10225455, 13633940, 16360728, 20450910, 27267880, 40901820, 81803640]

約数ペア:

[(1, 81803640), (2, 40901820), (3, 27267880), (4, 20450910), (5, 16360728), (6, 13633940), (8, 10225455), (10, 8180364), (12, 6816970), (15, 5453576), (20, 4090182), (23, 3556680), (24, 3408485), (30, 2726788), (40, 2045091), (46, 1778340), (60, 1363394), (69, 1185560), (92, 889170), (107, 764520), (115, 711336), (120, 681697), (138, 592780), (184, 444585), (214, 382260), (230, 355668), (276, 296390), (277, 295320), (321, 254840), (345, 237112), (428, 191130), (460, 177834), (535, 152904), (552, 148195), (554, 147660), (642, 127420), (690, 118556), (831, 98440), (856, 95565), (920, 88917), (1070, 76452), (1108, 73830), (1284, 63710), (1380, 59278), (1385, 59064), (1605, 50968), (1662, 49220), (2140, 38226), (2216, 36915), (2461, 33240), (2568, 31855), (2760, 29639), (2770, 29532), (3210, 25484), (3324, 24610), (4155, 19688), (4280, 19113), (4922, 16620), (5540, 14766), (6371, 12840), (6420, 12742), (6648, 12305), (7383, 11080), (8310, 9844)]