290400250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:209

約数の個数: 128

約数和(自身を含む): 659902464

約数和(自身を除く): 369502214

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 50, 53, 62, 70, 101, 106, 125, 155, 175, 202, 217, 250, 265, 310, 350, 371, 434, 505, 530, 707, 742, 775, 875, 1010, 1085, 1325, 1414, 1550, 1643, 1750, 1855, 2170, 2525, 2650, 3131, 3286, 3535, 3710, 3875, 5050, 5353, 5425, 6262, 6625, 7070, 7750, 8215, 9275, 10706, 10850, 11501, 12625, 13250, 15655, 16430, 17675, 18550, 21917, 23002, 25250, 26765, 27125, 31310, 35350, 37471, 41075, 43834, 46375, 53530, 54250, 57505, 74942, 78275, 82150, 88375, 92750, 109585, 115010, 133825, 156550, 165943, 176750, 187355, 205375, 219170, 267650, 287525, 331886, 374710, 391375, 410750, 547925, 575050, 669125, 782750, 829715, 936775, 1095850, 1161601, 1338250, 1437625, 1659430, 1873550, 2323202, 2739625, 2875250, 4148575, 4683875, 5479250, 5808005, 8297150, 9367750, 11616010, 20742875, 29040025, 41485750, 58080050, 145200125, 290400250]

約数ペア:

[(1, 290400250), (2, 145200125), (5, 58080050), (7, 41485750), (10, 29040025), (14, 20742875), (25, 11616010), (31, 9367750), (35, 8297150), (50, 5808005), (53, 5479250), (62, 4683875), (70, 4148575), (101, 2875250), (106, 2739625), (125, 2323202), (155, 1873550), (175, 1659430), (202, 1437625), (217, 1338250), (250, 1161601), (265, 1095850), (310, 936775), (350, 829715), (371, 782750), (434, 669125), (505, 575050), (530, 547925), (707, 410750), (742, 391375), (775, 374710), (875, 331886), (1010, 287525), (1085, 267650), (1325, 219170), (1414, 205375), (1550, 187355), (1643, 176750), (1750, 165943), (1855, 156550), (2170, 133825), (2525, 115010), (2650, 109585), (3131, 92750), (3286, 88375), (3535, 82150), (3710, 78275), (3875, 74942), (5050, 57505), (5353, 54250), (5425, 53530), (6262, 46375), (6625, 43834), (7070, 41075), (7750, 37471), (8215, 35350), (9275, 31310), (10706, 27125), (10850, 26765), (11501, 25250), (12625, 23002), (13250, 21917), (15655, 18550), (16430, 17675)]