250641820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:332

約数の個数: 144

約数和(自身を含む): 645652224

約数和(自身を除く): 395010404

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 31, 44, 52, 55, 62, 65, 110, 121, 124, 130, 143, 155, 220, 242, 257, 260, 286, 310, 341, 403, 484, 514, 572, 605, 620, 682, 715, 806, 1028, 1210, 1285, 1364, 1430, 1573, 1612, 1705, 2015, 2420, 2570, 2827, 2860, 3146, 3341, 3410, 3751, 4030, 4433, 5140, 5654, 6292, 6682, 6820, 7502, 7865, 7967, 8060, 8866, 11308, 13364, 14135, 15004, 15730, 15934, 16705, 17732, 18755, 22165, 28270, 31097, 31460, 31868, 33410, 36751, 37510, 39835, 44330, 48763, 56540, 62194, 66820, 73502, 75020, 79670, 87637, 88660, 97526, 103571, 124388, 147004, 155485, 159340, 175274, 183755, 195052, 207142, 243815, 310970, 350548, 367510, 404261, 414284, 438185, 487630, 517855, 621940, 735020, 808522, 876370, 964007, 975260, 1035710, 1139281, 1617044, 1752740, 1928014, 2021305, 2071420, 2278562, 3856028, 4042610, 4557124, 4820035, 5696405, 8085220, 9640070, 11392810, 12532091, 19280140, 22785620, 25064182, 50128364, 62660455, 125320910, 250641820]

約数ペア:

[(1, 250641820), (2, 125320910), (4, 62660455), (5, 50128364), (10, 25064182), (11, 22785620), (13, 19280140), (20, 12532091), (22, 11392810), (26, 9640070), (31, 8085220), (44, 5696405), (52, 4820035), (55, 4557124), (62, 4042610), (65, 3856028), (110, 2278562), (121, 2071420), (124, 2021305), (130, 1928014), (143, 1752740), (155, 1617044), (220, 1139281), (242, 1035710), (257, 975260), (260, 964007), (286, 876370), (310, 808522), (341, 735020), (403, 621940), (484, 517855), (514, 487630), (572, 438185), (605, 414284), (620, 404261), (682, 367510), (715, 350548), (806, 310970), (1028, 243815), (1210, 207142), (1285, 195052), (1364, 183755), (1430, 175274), (1573, 159340), (1612, 155485), (1705, 147004), (2015, 124388), (2420, 103571), (2570, 97526), (2827, 88660), (2860, 87637), (3146, 79670), (3341, 75020), (3410, 73502), (3751, 66820), (4030, 62194), (4433, 56540), (5140, 48763), (5654, 44330), (6292, 39835), (6682, 37510), (6820, 36751), (7502, 33410), (7865, 31868), (7967, 31460), (8060, 31097), (8866, 28270), (11308, 22165), (13364, 18755), (14135, 17732), (15004, 16705), (15730, 15934)]