20238470768

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{485941}}^1$

素因数の和:486105

約数の個数: 40

約数和(自身を含む): 41577197520

約数和(自身を除く): 21338726752

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 137, 152, 274, 304, 548, 1096, 2192, 2603, 5206, 10412, 20824, 41648, 485941, 971882, 1943764, 3887528, 7775056, 9232879, 18465758, 36931516, 66573917, 73863032, 133147834, 147726064, 266295668, 532591336, 1065182672, 1264904423, 2529808846, 5059617692, 10119235384, 20238470768]

約数ペア:

[(1, 20238470768), (2, 10119235384), (4, 5059617692), (8, 2529808846), (16, 1264904423), (19, 1065182672), (38, 532591336), (76, 266295668), (137, 147726064), (152, 133147834), (274, 73863032), (304, 66573917), (548, 36931516), (1096, 18465758), (2192, 9232879), (2603, 7775056), (5206, 3887528), (10412, 1943764), (20824, 971882), (41648, 485941)]