204555220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{3691}}^1$

素因数の和:3880

約数の個数: 48

約数和(自身を含む): 457748928

約数和(自身を除く): 253193708

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 163, 170, 326, 340, 652, 815, 1630, 2771, 3260, 3691, 5542, 7382, 11084, 13855, 14764, 18455, 27710, 36910, 55420, 62747, 73820, 125494, 250988, 313735, 601633, 627470, 1203266, 1254940, 2406532, 3008165, 6016330, 10227761, 12032660, 20455522, 40911044, 51138805, 102277610, 204555220]

約数ペア:

[(1, 204555220), (2, 102277610), (4, 51138805), (5, 40911044), (10, 20455522), (17, 12032660), (20, 10227761), (34, 6016330), (68, 3008165), (85, 2406532), (163, 1254940), (170, 1203266), (326, 627470), (340, 601633), (652, 313735), (815, 250988), (1630, 125494), (2771, 73820), (3260, 62747), (3691, 55420), (5542, 36910), (7382, 27710), (11084, 18455), (13855, 14764)]