18927460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{311}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 23529500

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 179, 311, 340, 358, 622, 716, 895, 1244, 1555, 1790, 3043, 3110, 3580, 5287, 6086, 6220, 10574, 12172, 15215, 21148, 26435, 30430, 52870, 55669, 60860, 105740, 111338, 222676, 278345, 556690, 946373, 1113380, 1892746, 3785492, 4731865, 9463730, 18927460]

約数ペア:

[(1, 18927460), (2, 9463730), (4, 4731865), (5, 3785492), (10, 1892746), (17, 1113380), (20, 946373), (34, 556690), (68, 278345), (85, 222676), (170, 111338), (179, 105740), (311, 60860), (340, 55669), (358, 52870), (622, 30430), (716, 26435), (895, 21148), (1244, 15215), (1555, 12172), (1790, 10574), (3043, 6220), (3110, 6086), (3580, 5287)]