645614860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:428

約数の個数: 96

約数和(自身を含む): 1515064320

約数和(自身を除く): 869449460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 121, 158, 220, 242, 307, 316, 395, 484, 605, 614, 790, 869, 1210, 1228, 1331, 1535, 1580, 1738, 2420, 2662, 3070, 3377, 3476, 4345, 5324, 6140, 6655, 6754, 8690, 9559, 13310, 13508, 16885, 17380, 19118, 24253, 26620, 33770, 37147, 38236, 47795, 48506, 67540, 74294, 95590, 97012, 105149, 121265, 148588, 185735, 191180, 210298, 242530, 266783, 371470, 408617, 420596, 485060, 525745, 533566, 742940, 817234, 1051490, 1067132, 1333915, 1634468, 2043085, 2102980, 2667830, 2934613, 4086170, 5335660, 5869226, 8172340, 11738452, 14673065, 29346130, 32280743, 58692260, 64561486, 129122972, 161403715, 322807430, 645614860]

約数ペア:

[(1, 645614860), (2, 322807430), (4, 161403715), (5, 129122972), (10, 64561486), (11, 58692260), (20, 32280743), (22, 29346130), (44, 14673065), (55, 11738452), (79, 8172340), (110, 5869226), (121, 5335660), (158, 4086170), (220, 2934613), (242, 2667830), (307, 2102980), (316, 2043085), (395, 1634468), (484, 1333915), (605, 1067132), (614, 1051490), (790, 817234), (869, 742940), (1210, 533566), (1228, 525745), (1331, 485060), (1535, 420596), (1580, 408617), (1738, 371470), (2420, 266783), (2662, 242530), (3070, 210298), (3377, 191180), (3476, 185735), (4345, 148588), (5324, 121265), (6140, 105149), (6655, 97012), (6754, 95590), (8690, 74294), (9559, 67540), (13310, 48506), (13508, 47795), (16885, 38236), (17380, 37147), (19118, 33770), (24253, 26620)]