28407160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{739}}^1$

素因数の和:812

約数の個数: 48

約数和(自身を含む): 66133800

約数和(自身を除く): 37726640

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 739, 961, 1240, 1478, 1922, 2956, 3695, 3844, 4805, 5912, 7390, 7688, 9610, 14780, 19220, 22909, 29560, 38440, 45818, 91636, 114545, 183272, 229090, 458180, 710179, 916360, 1420358, 2840716, 3550895, 5681432, 7101790, 14203580, 28407160]

約数ペア:

[(1, 28407160), (2, 14203580), (4, 7101790), (5, 5681432), (8, 3550895), (10, 2840716), (20, 1420358), (31, 916360), (40, 710179), (62, 458180), (124, 229090), (155, 183272), (248, 114545), (310, 91636), (620, 45818), (739, 38440), (961, 29560), (1240, 22909), (1478, 19220), (1922, 14780), (2956, 9610), (3695, 7688), (3844, 7390), (4805, 5912)]