20796638860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{305743}}^1$

素因数の和:305950

約数の個数: 48

約数和(自身を含む): 46228492800

約数和(自身を除く): 25431853940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 179, 190, 358, 380, 716, 895, 1790, 3401, 3580, 6802, 13604, 17005, 34010, 68020, 305743, 611486, 1222972, 1528715, 3057430, 5809117, 6114860, 11618234, 23236468, 29045585, 54727997, 58091170, 109455994, 116182340, 218911988, 273639985, 547279970, 1039831943, 1094559940, 2079663886, 4159327772, 5199159715, 10398319430, 20796638860]

約数ペア:

[(1, 20796638860), (2, 10398319430), (4, 5199159715), (5, 4159327772), (10, 2079663886), (19, 1094559940), (20, 1039831943), (38, 547279970), (76, 273639985), (95, 218911988), (179, 116182340), (190, 109455994), (358, 58091170), (380, 54727997), (716, 29045585), (895, 23236468), (1790, 11618234), (3401, 6114860), (3580, 5809117), (6802, 3057430), (13604, 1528715), (17005, 1222972), (34010, 611486), (68020, 305743)]