15431990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{283}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 34352640

約数和(自身を除く): 18920650

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 41, 70, 82, 95, 133, 190, 205, 266, 283, 287, 410, 566, 574, 665, 779, 1330, 1415, 1435, 1558, 1981, 2830, 2870, 3895, 3962, 5377, 5453, 7790, 9905, 10754, 10906, 11603, 19810, 23206, 26885, 27265, 37639, 53770, 54530, 58015, 75278, 81221, 116030, 162442, 188195, 220457, 376390, 406105, 440914, 812210, 1102285, 1543199, 2204570, 3086398, 7715995, 15431990]

約数ペア:

[(1, 15431990), (2, 7715995), (5, 3086398), (7, 2204570), (10, 1543199), (14, 1102285), (19, 812210), (35, 440914), (38, 406105), (41, 376390), (70, 220457), (82, 188195), (95, 162442), (133, 116030), (190, 81221), (205, 75278), (266, 58015), (283, 54530), (287, 53770), (410, 37639), (566, 27265), (574, 26885), (665, 23206), (779, 19810), (1330, 11603), (1415, 10906), (1435, 10754), (1558, 9905), (1981, 7790), (2830, 5453), (2870, 5377), (3895, 3962)]