215711080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 544320000

約数和(自身を除く): 328608920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 59, 65, 79, 89, 104, 118, 130, 158, 178, 236, 260, 295, 316, 356, 395, 445, 472, 520, 590, 632, 712, 767, 790, 890, 1027, 1157, 1180, 1534, 1580, 1780, 2054, 2314, 2360, 3068, 3160, 3560, 3835, 4108, 4628, 4661, 5135, 5251, 5785, 6136, 7031, 7670, 8216, 9256, 9322, 10270, 10502, 11570, 14062, 15340, 18644, 20540, 21004, 23140, 23305, 26255, 28124, 30680, 35155, 37288, 41080, 42008, 46280, 46610, 52510, 56248, 60593, 68263, 70310, 91403, 93220, 105020, 121186, 136526, 140620, 182806, 186440, 210040, 242372, 273052, 281240, 302965, 341315, 365612, 414829, 457015, 484744, 546104, 605930, 682630, 731224, 829658, 914030, 1211860, 1365260, 1659316, 1828060, 2074145, 2423720, 2730520, 3318632, 3656120, 4148290, 5392777, 8296580, 10785554, 16593160, 21571108, 26963885, 43142216, 53927770, 107855540, 215711080]

約数ペア:

[(1, 215711080), (2, 107855540), (4, 53927770), (5, 43142216), (8, 26963885), (10, 21571108), (13, 16593160), (20, 10785554), (26, 8296580), (40, 5392777), (52, 4148290), (59, 3656120), (65, 3318632), (79, 2730520), (89, 2423720), (104, 2074145), (118, 1828060), (130, 1659316), (158, 1365260), (178, 1211860), (236, 914030), (260, 829658), (295, 731224), (316, 682630), (356, 605930), (395, 546104), (445, 484744), (472, 457015), (520, 414829), (590, 365612), (632, 341315), (712, 302965), (767, 281240), (790, 273052), (890, 242372), (1027, 210040), (1157, 186440), (1180, 182806), (1534, 140620), (1580, 136526), (1780, 121186), (2054, 105020), (2314, 93220), (2360, 91403), (3068, 70310), (3160, 68263), (3560, 60593), (3835, 56248), (4108, 52510), (4628, 46610), (4661, 46280), (5135, 42008), (5251, 41080), (5785, 37288), (6136, 35155), (7031, 30680), (7670, 28124), (8216, 26255), (9256, 23305), (9322, 23140), (10270, 21004), (10502, 20540), (11570, 18644), (14062, 15340)]