19869640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2447}}^1$

素因数の和:2494

約数の個数: 64

約数和(自身を含む): 52876800

約数和(自身を除く): 33007160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 2447, 4060, 4894, 8120, 9788, 12235, 17129, 19576, 24470, 34258, 48940, 68516, 70963, 85645, 97880, 137032, 141926, 171290, 283852, 342580, 354815, 496741, 567704, 685160, 709630, 993482, 1419260, 1986964, 2483705, 2838520, 3973928, 4967410, 9934820, 19869640]

約数ペア:

[(1, 19869640), (2, 9934820), (4, 4967410), (5, 3973928), (7, 2838520), (8, 2483705), (10, 1986964), (14, 1419260), (20, 993482), (28, 709630), (29, 685160), (35, 567704), (40, 496741), (56, 354815), (58, 342580), (70, 283852), (116, 171290), (140, 141926), (145, 137032), (203, 97880), (232, 85645), (280, 70963), (290, 68516), (406, 48940), (580, 34258), (812, 24470), (1015, 19576), (1160, 17129), (1624, 12235), (2030, 9788), (2447, 8120), (4060, 4894)]