207764380

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 443390976

約数和(自身を除く): 235626596

約数列:

[1, 2, 4, 5, 10, 20, 127, 157, 254, 314, 508, 521, 628, 635, 785, 1042, 1270, 1570, 2084, 2540, 2605, 3140, 5210, 10420, 19939, 39878, 66167, 79756, 81797, 99695, 132334, 163594, 199390, 264668, 327188, 330835, 398780, 408985, 661670, 817970, 1323340, 1635940, 10388219, 20776438, 41552876, 51941095, 103882190, 207764380]

約数ペア:

[(1, 207764380), (2, 103882190), (4, 51941095), (5, 41552876), (10, 20776438), (20, 10388219), (127, 1635940), (157, 1323340), (254, 817970), (314, 661670), (508, 408985), (521, 398780), (628, 330835), (635, 327188), (785, 264668), (1042, 199390), (1270, 163594), (1570, 132334), (2084, 99695), (2540, 81797), (2605, 79756), (3140, 66167), (5210, 39878), (10420, 19939)]