71905540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{307}}^1$

素因数の和:569

約数の個数: 72

約数和(自身を含む): 176964480

約数和(自身を除く): 105058940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 239, 245, 307, 478, 490, 614, 956, 980, 1195, 1228, 1535, 1673, 2149, 2390, 3070, 3346, 4298, 4780, 6140, 6692, 8365, 8596, 10745, 11711, 15043, 16730, 21490, 23422, 30086, 33460, 42980, 46844, 58555, 60172, 73373, 75215, 117110, 146746, 150430, 234220, 293492, 300860, 366865, 513611, 733730, 1027222, 1467460, 2054444, 2568055, 3595277, 5136110, 7190554, 10272220, 14381108, 17976385, 35952770, 71905540]

約数ペア:

[(1, 71905540), (2, 35952770), (4, 17976385), (5, 14381108), (7, 10272220), (10, 7190554), (14, 5136110), (20, 3595277), (28, 2568055), (35, 2054444), (49, 1467460), (70, 1027222), (98, 733730), (140, 513611), (196, 366865), (239, 300860), (245, 293492), (307, 234220), (478, 150430), (490, 146746), (614, 117110), (956, 75215), (980, 73373), (1195, 60172), (1228, 58555), (1535, 46844), (1673, 42980), (2149, 33460), (2390, 30086), (3070, 23422), (3346, 21490), (4298, 16730), (4780, 15043), (6140, 11711), (6692, 10745), (8365, 8596)]