20125971928

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{683}}^1\times {\mathrm{809}}^1$

素因数の和:1684

約数の個数: 64

約数和(自身を含む): 39392244000

約数和(自身を除く): 19266272072

約数列:

[1, 2, 4, 8, 29, 58, 116, 157, 232, 314, 628, 683, 809, 1256, 1366, 1618, 2732, 3236, 4553, 5464, 6472, 9106, 18212, 19807, 23461, 36424, 39614, 46922, 79228, 93844, 107231, 127013, 158456, 187688, 214462, 254026, 428924, 508052, 552547, 857848, 1016104, 1105094, 2210188, 3109699, 3683377, 4420376, 6219398, 7366754, 12438796, 14733508, 16023863, 24877592, 29467016, 32047726, 64095452, 86749879, 128190904, 173499758, 346999516, 693999032, 2515746491, 5031492982, 10062985964, 20125971928]

約数ペア:

[(1, 20125971928), (2, 10062985964), (4, 5031492982), (8, 2515746491), (29, 693999032), (58, 346999516), (116, 173499758), (157, 128190904), (232, 86749879), (314, 64095452), (628, 32047726), (683, 29467016), (809, 24877592), (1256, 16023863), (1366, 14733508), (1618, 12438796), (2732, 7366754), (3236, 6219398), (4553, 4420376), (5464, 3683377), (6472, 3109699), (9106, 2210188), (18212, 1105094), (19807, 1016104), (23461, 857848), (36424, 552547), (39614, 508052), (46922, 428924), (79228, 254026), (93844, 214462), (107231, 187688), (127013, 158456)]