31120540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:247

約数の個数: 96

約数和(自身を含む): 77402304

約数和(自身を除く): 46281764

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 53, 55, 68, 85, 106, 110, 157, 170, 187, 212, 220, 265, 314, 340, 374, 530, 583, 628, 748, 785, 901, 935, 1060, 1166, 1570, 1727, 1802, 1870, 2332, 2669, 2915, 3140, 3454, 3604, 3740, 4505, 5338, 5830, 6908, 8321, 8635, 9010, 9911, 10676, 11660, 13345, 16642, 17270, 18020, 19822, 26690, 29359, 33284, 34540, 39644, 41605, 49555, 53380, 58718, 83210, 91531, 99110, 117436, 141457, 146795, 166420, 183062, 198220, 282914, 293590, 366124, 457655, 565828, 587180, 707285, 915310, 1414570, 1556027, 1830620, 2829140, 3112054, 6224108, 7780135, 15560270, 31120540]

約数ペア:

[(1, 31120540), (2, 15560270), (4, 7780135), (5, 6224108), (10, 3112054), (11, 2829140), (17, 1830620), (20, 1556027), (22, 1414570), (34, 915310), (44, 707285), (53, 587180), (55, 565828), (68, 457655), (85, 366124), (106, 293590), (110, 282914), (157, 198220), (170, 183062), (187, 166420), (212, 146795), (220, 141457), (265, 117436), (314, 99110), (340, 91531), (374, 83210), (530, 58718), (583, 53380), (628, 49555), (748, 41605), (785, 39644), (901, 34540), (935, 33284), (1060, 29359), (1166, 26690), (1570, 19822), (1727, 18020), (1802, 17270), (1870, 16642), (2332, 13345), (2669, 11660), (2915, 10676), (3140, 9911), (3454, 9010), (3604, 8635), (3740, 8321), (4505, 6908), (5338, 5830)]