31378120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 77769720

約数和(自身を除く): 46391600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 53, 76, 82, 95, 106, 152, 164, 190, 205, 212, 265, 328, 361, 380, 410, 424, 530, 722, 760, 779, 820, 1007, 1060, 1444, 1558, 1640, 1805, 2014, 2120, 2173, 2888, 3116, 3610, 3895, 4028, 4346, 5035, 6232, 7220, 7790, 8056, 8692, 10070, 10865, 14440, 14801, 15580, 17384, 19133, 20140, 21730, 29602, 31160, 38266, 40280, 41287, 43460, 59204, 74005, 76532, 82574, 86920, 95665, 118408, 148010, 153064, 165148, 191330, 206435, 296020, 330296, 382660, 412870, 592040, 765320, 784453, 825740, 1568906, 1651480, 3137812, 3922265, 6275624, 7844530, 15689060, 31378120]

約数ペア:

[(1, 31378120), (2, 15689060), (4, 7844530), (5, 6275624), (8, 3922265), (10, 3137812), (19, 1651480), (20, 1568906), (38, 825740), (40, 784453), (41, 765320), (53, 592040), (76, 412870), (82, 382660), (95, 330296), (106, 296020), (152, 206435), (164, 191330), (190, 165148), (205, 153064), (212, 148010), (265, 118408), (328, 95665), (361, 86920), (380, 82574), (410, 76532), (424, 74005), (530, 59204), (722, 43460), (760, 41287), (779, 40280), (820, 38266), (1007, 31160), (1060, 29602), (1444, 21730), (1558, 20140), (1640, 19133), (1805, 17384), (2014, 15580), (2120, 14801), (2173, 14440), (2888, 10865), (3116, 10070), (3610, 8692), (3895, 8056), (4028, 7790), (4346, 7220), (5035, 6232)]