221606900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2137}}^1$

素因数の和:2229

約数の個数: 72

約数和(自身を含む): 517763736

約数和(自身を除く): 296156836

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 61, 68, 85, 100, 122, 170, 244, 305, 340, 425, 610, 850, 1037, 1220, 1525, 1700, 2074, 2137, 3050, 4148, 4274, 5185, 6100, 8548, 10370, 10685, 20740, 21370, 25925, 36329, 42740, 51850, 53425, 72658, 103700, 106850, 130357, 145316, 181645, 213700, 260714, 363290, 521428, 651785, 726580, 908225, 1303570, 1816450, 2216069, 2607140, 3258925, 3632900, 4432138, 6517850, 8864276, 11080345, 13035700, 22160690, 44321380, 55401725, 110803450, 221606900]

約数ペア:

[(1, 221606900), (2, 110803450), (4, 55401725), (5, 44321380), (10, 22160690), (17, 13035700), (20, 11080345), (25, 8864276), (34, 6517850), (50, 4432138), (61, 3632900), (68, 3258925), (85, 2607140), (100, 2216069), (122, 1816450), (170, 1303570), (244, 908225), (305, 726580), (340, 651785), (425, 521428), (610, 363290), (850, 260714), (1037, 213700), (1220, 181645), (1525, 145316), (1700, 130357), (2074, 106850), (2137, 103700), (3050, 72658), (4148, 53425), (4274, 51850), (5185, 42740), (6100, 36329), (8548, 25925), (10370, 21370), (10685, 20740)]