318181520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{7547}}^1$

素因数の和:7608

約数の個数: 80

約数和(自身を含む): 808662528

約数和(自身を除く): 490481008

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 310, 340, 496, 527, 620, 680, 1054, 1240, 1360, 2108, 2480, 2635, 4216, 5270, 7547, 8432, 10540, 15094, 21080, 30188, 37735, 42160, 60376, 75470, 120752, 128299, 150940, 233957, 256598, 301880, 467914, 513196, 603760, 641495, 935828, 1026392, 1169785, 1282990, 1871656, 2052784, 2339570, 2565980, 3743312, 3977269, 4679140, 5131960, 7954538, 9358280, 10263920, 15909076, 18716560, 19886345, 31818152, 39772690, 63636304, 79545380, 159090760, 318181520]

約数ペア:

[(1, 318181520), (2, 159090760), (4, 79545380), (5, 63636304), (8, 39772690), (10, 31818152), (16, 19886345), (17, 18716560), (20, 15909076), (31, 10263920), (34, 9358280), (40, 7954538), (62, 5131960), (68, 4679140), (80, 3977269), (85, 3743312), (124, 2565980), (136, 2339570), (155, 2052784), (170, 1871656), (248, 1282990), (272, 1169785), (310, 1026392), (340, 935828), (496, 641495), (527, 603760), (620, 513196), (680, 467914), (1054, 301880), (1240, 256598), (1360, 233957), (2108, 150940), (2480, 128299), (2635, 120752), (4216, 75470), (5270, 60376), (7547, 42160), (8432, 37735), (10540, 30188), (15094, 21080)]