251610880

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:442

約数の個数: 144

約数和(自身を含む): 660489984

約数和(自身を除く): 408879104

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 124, 128, 136, 155, 160, 170, 248, 256, 272, 310, 320, 340, 373, 496, 527, 544, 620, 640, 680, 746, 992, 1054, 1088, 1240, 1280, 1360, 1492, 1865, 1984, 2108, 2176, 2480, 2635, 2720, 2984, 3730, 3968, 4216, 4352, 4960, 5270, 5440, 5968, 6341, 7460, 7936, 8432, 9920, 10540, 10880, 11563, 11936, 12682, 14920, 16864, 19840, 21080, 21760, 23126, 23872, 25364, 29840, 31705, 33728, 39680, 42160, 46252, 47744, 50728, 57815, 59680, 63410, 67456, 84320, 92504, 95488, 101456, 115630, 119360, 126820, 134912, 168640, 185008, 196571, 202912, 231260, 238720, 253640, 337280, 370016, 393142, 405824, 462520, 477440, 507280, 674560, 740032, 786284, 811648, 925040, 982855, 1014560, 1480064, 1572568, 1623296, 1850080, 1965710, 2029120, 2960128, 3145136, 3700160, 3931420, 4058240, 6290272, 7400320, 7862840, 8116480, 12580544, 14800640, 15725680, 25161088, 31451360, 50322176, 62902720, 125805440, 251610880]

約数ペア:

[(1, 251610880), (2, 125805440), (4, 62902720), (5, 50322176), (8, 31451360), (10, 25161088), (16, 15725680), (17, 14800640), (20, 12580544), (31, 8116480), (32, 7862840), (34, 7400320), (40, 6290272), (62, 4058240), (64, 3931420), (68, 3700160), (80, 3145136), (85, 2960128), (124, 2029120), (128, 1965710), (136, 1850080), (155, 1623296), (160, 1572568), (170, 1480064), (248, 1014560), (256, 982855), (272, 925040), (310, 811648), (320, 786284), (340, 740032), (373, 674560), (496, 507280), (527, 477440), (544, 462520), (620, 405824), (640, 393142), (680, 370016), (746, 337280), (992, 253640), (1054, 238720), (1088, 231260), (1240, 202912), (1280, 196571), (1360, 185008), (1492, 168640), (1865, 134912), (1984, 126820), (2108, 119360), (2176, 115630), (2480, 101456), (2635, 95488), (2720, 92504), (2984, 84320), (3730, 67456), (3968, 63410), (4216, 59680), (4352, 57815), (4960, 50728), (5270, 47744), (5440, 46252), (5968, 42160), (6341, 39680), (7460, 33728), (7936, 31705), (8432, 29840), (9920, 25364), (10540, 23872), (10880, 23126), (11563, 21760), (11936, 21080), (12682, 19840), (14920, 16864)]