179920400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:529

約数の個数: 120

約数和(自身を含む): 477332544

約数和(自身を除く): 297412144

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 103, 110, 176, 200, 206, 220, 275, 397, 400, 412, 440, 515, 550, 794, 824, 880, 1030, 1100, 1133, 1588, 1648, 1985, 2060, 2200, 2266, 2575, 3176, 3970, 4120, 4367, 4400, 4532, 5150, 5665, 6352, 7940, 8240, 8734, 9064, 9925, 10300, 11330, 15880, 17468, 18128, 19850, 20600, 21835, 22660, 28325, 31760, 34936, 39700, 40891, 41200, 43670, 45320, 56650, 69872, 79400, 81782, 87340, 90640, 109175, 113300, 158800, 163564, 174680, 204455, 218350, 226600, 327128, 349360, 408910, 436700, 449801, 453200, 654256, 817820, 873400, 899602, 1022275, 1635640, 1746800, 1799204, 2044550, 2249005, 3271280, 3598408, 4089100, 4498010, 7196816, 8178200, 8996020, 11245025, 16356400, 17992040, 22490050, 35984080, 44980100, 89960200, 179920400]

約数ペア:

[(1, 179920400), (2, 89960200), (4, 44980100), (5, 35984080), (8, 22490050), (10, 17992040), (11, 16356400), (16, 11245025), (20, 8996020), (22, 8178200), (25, 7196816), (40, 4498010), (44, 4089100), (50, 3598408), (55, 3271280), (80, 2249005), (88, 2044550), (100, 1799204), (103, 1746800), (110, 1635640), (176, 1022275), (200, 899602), (206, 873400), (220, 817820), (275, 654256), (397, 453200), (400, 449801), (412, 436700), (440, 408910), (515, 349360), (550, 327128), (794, 226600), (824, 218350), (880, 204455), (1030, 174680), (1100, 163564), (1133, 158800), (1588, 113300), (1648, 109175), (1985, 90640), (2060, 87340), (2200, 81782), (2266, 79400), (2575, 69872), (3176, 56650), (3970, 45320), (4120, 43670), (4367, 41200), (4400, 40891), (4532, 39700), (5150, 34936), (5665, 31760), (6352, 28325), (7940, 22660), (8240, 21835), (8734, 20600), (9064, 19850), (9925, 18128), (10300, 17468), (11330, 15880)]