77887890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:424

約数の個数: 96

約数和(自身を含む): 213497856

約数和(自身を除く): 135609966

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 191, 197, 207, 230, 345, 382, 394, 414, 573, 591, 690, 955, 985, 1035, 1146, 1182, 1719, 1773, 1910, 1970, 2070, 2865, 2955, 3438, 3546, 4393, 4531, 5730, 5910, 8595, 8786, 8865, 9062, 13179, 13593, 17190, 17730, 21965, 22655, 26358, 27186, 37627, 39537, 40779, 43930, 45310, 65895, 67965, 75254, 79074, 81558, 112881, 131790, 135930, 188135, 197685, 203895, 225762, 338643, 376270, 395370, 407790, 564405, 677286, 865421, 1128810, 1693215, 1730842, 2596263, 3386430, 4327105, 5192526, 7788789, 8654210, 12981315, 15577578, 25962630, 38943945, 77887890]

約数ペア:

[(1, 77887890), (2, 38943945), (3, 25962630), (5, 15577578), (6, 12981315), (9, 8654210), (10, 7788789), (15, 5192526), (18, 4327105), (23, 3386430), (30, 2596263), (45, 1730842), (46, 1693215), (69, 1128810), (90, 865421), (115, 677286), (138, 564405), (191, 407790), (197, 395370), (207, 376270), (230, 338643), (345, 225762), (382, 203895), (394, 197685), (414, 188135), (573, 135930), (591, 131790), (690, 112881), (955, 81558), (985, 79074), (1035, 75254), (1146, 67965), (1182, 65895), (1719, 45310), (1773, 43930), (1910, 40779), (1970, 39537), (2070, 37627), (2865, 27186), (2955, 26358), (3438, 22655), (3546, 21965), (4393, 17730), (4531, 17190), (5730, 13593), (5910, 13179), (8595, 9062), (8786, 8865)]