405899120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{14879}}^1$

素因数の和:14934

約数の個数: 80

約数和(自身を含む): 1062789120

約数和(自身を除く): 656890000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 3410, 5456, 6820, 13640, 14879, 27280, 29758, 59516, 74395, 119032, 148790, 163669, 238064, 297580, 327338, 461249, 595160, 654676, 818345, 922498, 1190320, 1309352, 1636690, 1844996, 2306245, 2618704, 3273380, 3689992, 4612490, 5073739, 6546760, 7379984, 9224980, 10147478, 13093520, 18449960, 20294956, 25368695, 36899920, 40589912, 50737390, 81179824, 101474780, 202949560, 405899120]

約数ペア:

[(1, 405899120), (2, 202949560), (4, 101474780), (5, 81179824), (8, 50737390), (10, 40589912), (11, 36899920), (16, 25368695), (20, 20294956), (22, 18449960), (31, 13093520), (40, 10147478), (44, 9224980), (55, 7379984), (62, 6546760), (80, 5073739), (88, 4612490), (110, 3689992), (124, 3273380), (155, 2618704), (176, 2306245), (220, 1844996), (248, 1636690), (310, 1309352), (341, 1190320), (440, 922498), (496, 818345), (620, 654676), (682, 595160), (880, 461249), (1240, 327338), (1364, 297580), (1705, 238064), (2480, 163669), (2728, 148790), (3410, 119032), (5456, 74395), (6820, 59516), (13640, 29758), (14879, 27280)]