20432984

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 45995040

約数和(自身を除く): 25562056

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 53, 88, 104, 106, 143, 212, 286, 337, 424, 572, 583, 674, 689, 1144, 1166, 1348, 1378, 2332, 2696, 2756, 3707, 4381, 4664, 5512, 7414, 7579, 8762, 14828, 15158, 17524, 17861, 29656, 30316, 35048, 35722, 48191, 60632, 71444, 96382, 142888, 192764, 196471, 232193, 385528, 392942, 464386, 785884, 928772, 1571768, 1857544, 2554123, 5108246, 10216492, 20432984]

約数ペア:

[(1, 20432984), (2, 10216492), (4, 5108246), (8, 2554123), (11, 1857544), (13, 1571768), (22, 928772), (26, 785884), (44, 464386), (52, 392942), (53, 385528), (88, 232193), (104, 196471), (106, 192764), (143, 142888), (212, 96382), (286, 71444), (337, 60632), (424, 48191), (572, 35722), (583, 35048), (674, 30316), (689, 29656), (1144, 17861), (1166, 17524), (1348, 15158), (1378, 14828), (2332, 8762), (2696, 7579), (2756, 7414), (3707, 5512), (4381, 4664)]