87855620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{5639}}^1$

素因数の和:5708

約数の個数: 48

約数和(自身を含む): 198979200

約数和(自身を除く): 111123580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 5639, 7790, 11278, 15580, 22556, 28195, 56390, 107141, 112780, 214282, 231199, 428564, 462398, 535705, 924796, 1071410, 1155995, 2142820, 2311990, 4392781, 4623980, 8785562, 17571124, 21963905, 43927810, 87855620]

約数ペア:

[(1, 87855620), (2, 43927810), (4, 21963905), (5, 17571124), (10, 8785562), (19, 4623980), (20, 4392781), (38, 2311990), (41, 2142820), (76, 1155995), (82, 1071410), (95, 924796), (164, 535705), (190, 462398), (205, 428564), (380, 231199), (410, 214282), (779, 112780), (820, 107141), (1558, 56390), (3116, 28195), (3895, 22556), (5639, 15580), (7790, 11278)]