15691132540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1\times {\mathrm{431}}^1$

素因数の和:823

約数の個数: 96

約数和(自身を含む): 33880654080

約数和(自身を除く): 18189521540

約数列:

[1, 2, 4, 5, 10, 20, 89, 113, 178, 181, 226, 356, 362, 431, 445, 452, 565, 724, 862, 890, 905, 1130, 1724, 1780, 1810, 2155, 2260, 3620, 4310, 8620, 10057, 16109, 20114, 20453, 32218, 38359, 40228, 40906, 48703, 50285, 64436, 76718, 78011, 80545, 81812, 97406, 100570, 102265, 153436, 156022, 161090, 191795, 194812, 201140, 204530, 243515, 312044, 322180, 383590, 390055, 409060, 487030, 767180, 780110, 974060, 1560220, 1820317, 3640634, 4334567, 6942979, 7281268, 8669134, 8815243, 9101585, 13885958, 17338268, 17630486, 18203170, 21672835, 27771916, 34714895, 35260972, 36406340, 43345670, 44076215, 69429790, 86691340, 88152430, 138859580, 176304860, 784556627, 1569113254, 3138226508, 3922783135, 7845566270, 15691132540]

約数ペア:

[(1, 15691132540), (2, 7845566270), (4, 3922783135), (5, 3138226508), (10, 1569113254), (20, 784556627), (89, 176304860), (113, 138859580), (178, 88152430), (181, 86691340), (226, 69429790), (356, 44076215), (362, 43345670), (431, 36406340), (445, 35260972), (452, 34714895), (565, 27771916), (724, 21672835), (862, 18203170), (890, 17630486), (905, 17338268), (1130, 13885958), (1724, 9101585), (1780, 8815243), (1810, 8669134), (2155, 7281268), (2260, 6942979), (3620, 4334567), (4310, 3640634), (8620, 1820317), (10057, 1560220), (16109, 974060), (20114, 780110), (20453, 767180), (32218, 487030), (38359, 409060), (40228, 390055), (40906, 383590), (48703, 322180), (50285, 312044), (64436, 243515), (76718, 204530), (78011, 201140), (80545, 194812), (81812, 191795), (97406, 161090), (100570, 156022), (102265, 153436)]