31110780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:259

約数の個数: 96

約数和(自身を含む): 90478080

約数和(自身を除く): 59367300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 67, 71, 109, 134, 142, 201, 213, 218, 268, 284, 327, 335, 355, 402, 426, 436, 545, 654, 670, 710, 804, 852, 1005, 1065, 1090, 1308, 1340, 1420, 1635, 2010, 2130, 2180, 3270, 4020, 4260, 4757, 6540, 7303, 7739, 9514, 14271, 14606, 15478, 19028, 21909, 23217, 23785, 28542, 29212, 30956, 36515, 38695, 43818, 46434, 47570, 57084, 71355, 73030, 77390, 87636, 92868, 95140, 109545, 116085, 142710, 146060, 154780, 219090, 232170, 285420, 438180, 464340, 518513, 1037026, 1555539, 2074052, 2592565, 3111078, 5185130, 6222156, 7777695, 10370260, 15555390, 31110780]

約数ペア:

[(1, 31110780), (2, 15555390), (3, 10370260), (4, 7777695), (5, 6222156), (6, 5185130), (10, 3111078), (12, 2592565), (15, 2074052), (20, 1555539), (30, 1037026), (60, 518513), (67, 464340), (71, 438180), (109, 285420), (134, 232170), (142, 219090), (201, 154780), (213, 146060), (218, 142710), (268, 116085), (284, 109545), (327, 95140), (335, 92868), (355, 87636), (402, 77390), (426, 73030), (436, 71355), (545, 57084), (654, 47570), (670, 46434), (710, 43818), (804, 38695), (852, 36515), (1005, 30956), (1065, 29212), (1090, 28542), (1308, 23785), (1340, 23217), (1420, 21909), (1635, 19028), (2010, 15478), (2130, 14606), (2180, 14271), (3270, 9514), (4020, 7739), (4260, 7303), (4757, 6540)]