21450996920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1\times {\mathrm{73553}}^1$

素因数の和:73904

約数の個数: 64

約数和(自身を含む): 50522771520

約数和(自身を除く): 29071774600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 317, 460, 634, 920, 1268, 1585, 2536, 3170, 6340, 7291, 12680, 14582, 29164, 36455, 58328, 72910, 73553, 145820, 147106, 291640, 294212, 367765, 588424, 735530, 1471060, 1691719, 2942120, 3383438, 6766876, 8458595, 13533752, 16917190, 23316301, 33834380, 46632602, 67668760, 93265204, 116581505, 186530408, 233163010, 466326020, 536274923, 932652040, 1072549846, 2145099692, 2681374615, 4290199384, 5362749230, 10725498460, 21450996920]

約数ペア:

[(1, 21450996920), (2, 10725498460), (4, 5362749230), (5, 4290199384), (8, 2681374615), (10, 2145099692), (20, 1072549846), (23, 932652040), (40, 536274923), (46, 466326020), (92, 233163010), (115, 186530408), (184, 116581505), (230, 93265204), (317, 67668760), (460, 46632602), (634, 33834380), (920, 23316301), (1268, 16917190), (1585, 13533752), (2536, 8458595), (3170, 6766876), (6340, 3383438), (7291, 2942120), (12680, 1691719), (14582, 1471060), (29164, 735530), (36455, 588424), (58328, 367765), (72910, 294212), (73553, 291640), (145820, 147106)]