131223620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:393

約数の個数: 96

約数和(自身を含む): 315850752

約数和(自身を除く): 184627132

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 71, 110, 124, 142, 155, 220, 271, 284, 310, 341, 355, 542, 620, 682, 710, 781, 1084, 1355, 1364, 1420, 1562, 1705, 2201, 2710, 2981, 3124, 3410, 3905, 4402, 5420, 5962, 6820, 7810, 8401, 8804, 11005, 11924, 14905, 15620, 16802, 19241, 22010, 24211, 29810, 33604, 38482, 42005, 44020, 48422, 59620, 76964, 84010, 92411, 96205, 96844, 121055, 168020, 184822, 192410, 211651, 242110, 369644, 384820, 423302, 462055, 484220, 596471, 846604, 924110, 1058255, 1192942, 1848220, 2116510, 2385884, 2982355, 4233020, 5964710, 6561181, 11929420, 13122362, 26244724, 32805905, 65611810, 131223620]

約数ペア:

[(1, 131223620), (2, 65611810), (4, 32805905), (5, 26244724), (10, 13122362), (11, 11929420), (20, 6561181), (22, 5964710), (31, 4233020), (44, 2982355), (55, 2385884), (62, 2116510), (71, 1848220), (110, 1192942), (124, 1058255), (142, 924110), (155, 846604), (220, 596471), (271, 484220), (284, 462055), (310, 423302), (341, 384820), (355, 369644), (542, 242110), (620, 211651), (682, 192410), (710, 184822), (781, 168020), (1084, 121055), (1355, 96844), (1364, 96205), (1420, 92411), (1562, 84010), (1705, 76964), (2201, 59620), (2710, 48422), (2981, 44020), (3124, 42005), (3410, 38482), (3905, 33604), (4402, 29810), (5420, 24211), (5962, 22010), (6820, 19241), (7810, 16802), (8401, 15620), (8804, 14905), (11005, 11924)]