31396820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1327}}^1$

素因数の和:1369

約数の個数: 72

約数和(自身を含む): 81656064

約数和(自身を除く): 50259244

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 364, 455, 676, 845, 910, 1183, 1327, 1690, 1820, 2366, 2654, 3380, 4732, 5308, 5915, 6635, 9289, 11830, 13270, 17251, 18578, 23660, 26540, 34502, 37156, 46445, 69004, 86255, 92890, 120757, 172510, 185780, 224263, 241514, 345020, 448526, 483028, 603785, 897052, 1121315, 1207570, 1569841, 2242630, 2415140, 3139682, 4485260, 6279364, 7849205, 15698410, 31396820]

約数ペア:

[(1, 31396820), (2, 15698410), (4, 7849205), (5, 6279364), (7, 4485260), (10, 3139682), (13, 2415140), (14, 2242630), (20, 1569841), (26, 1207570), (28, 1121315), (35, 897052), (52, 603785), (65, 483028), (70, 448526), (91, 345020), (130, 241514), (140, 224263), (169, 185780), (182, 172510), (260, 120757), (338, 92890), (364, 86255), (455, 69004), (676, 46445), (845, 37156), (910, 34502), (1183, 26540), (1327, 23660), (1690, 18578), (1820, 17251), (2366, 13270), (2654, 11830), (3380, 9289), (4732, 6635), (5308, 5915)]