12858800

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:127

約数の個数: 120

約数和(自身を含む): 34319232

約数和(自身を除く): 21460432

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 31, 34, 40, 50, 61, 62, 68, 80, 85, 100, 122, 124, 136, 155, 170, 200, 244, 248, 272, 305, 310, 340, 400, 425, 488, 496, 527, 610, 620, 680, 775, 850, 976, 1037, 1054, 1220, 1240, 1360, 1525, 1550, 1700, 1891, 2074, 2108, 2440, 2480, 2635, 3050, 3100, 3400, 3782, 4148, 4216, 4880, 5185, 5270, 6100, 6200, 6800, 7564, 8296, 8432, 9455, 10370, 10540, 12200, 12400, 13175, 15128, 16592, 18910, 20740, 21080, 24400, 25925, 26350, 30256, 32147, 37820, 41480, 42160, 47275, 51850, 52700, 64294, 75640, 82960, 94550, 103700, 105400, 128588, 151280, 160735, 189100, 207400, 210800, 257176, 321470, 378200, 414800, 514352, 642940, 756400, 803675, 1285880, 1607350, 2571760, 3214700, 6429400, 12858800]

約数ペア:

[(1, 12858800), (2, 6429400), (4, 3214700), (5, 2571760), (8, 1607350), (10, 1285880), (16, 803675), (17, 756400), (20, 642940), (25, 514352), (31, 414800), (34, 378200), (40, 321470), (50, 257176), (61, 210800), (62, 207400), (68, 189100), (80, 160735), (85, 151280), (100, 128588), (122, 105400), (124, 103700), (136, 94550), (155, 82960), (170, 75640), (200, 64294), (244, 52700), (248, 51850), (272, 47275), (305, 42160), (310, 41480), (340, 37820), (400, 32147), (425, 30256), (488, 26350), (496, 25925), (527, 24400), (610, 21080), (620, 20740), (680, 18910), (775, 16592), (850, 15128), (976, 13175), (1037, 12400), (1054, 12200), (1220, 10540), (1240, 10370), (1360, 9455), (1525, 8432), (1550, 8296), (1700, 7564), (1891, 6800), (2074, 6200), (2108, 6100), (2440, 5270), (2480, 5185), (2635, 4880), (3050, 4216), (3100, 4148), (3400, 3782)]