20565218138

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1\times {\mathrm{499}}^1$

素因数の和:1155

約数の個数: 64

約数和(自身を含む): 34784640000

約数和(自身を除く): 14219421862

約数列:

[1, 2, 17, 19, 34, 38, 131, 262, 323, 487, 499, 646, 974, 998, 2227, 2489, 4454, 4978, 8279, 8483, 9253, 9481, 16558, 16966, 18506, 18962, 42313, 63797, 65369, 84626, 127594, 130738, 157301, 161177, 243013, 314602, 322354, 486026, 1084549, 1111273, 1212143, 1242011, 2169098, 2222546, 2424286, 2484022, 4131221, 4617247, 8262442, 9234494, 20606431, 21114187, 31834703, 41212862, 42228374, 63669406, 78493199, 156986398, 541189951, 604859357, 1082379902, 1209718714, 10282609069, 20565218138]

約数ペア:

[(1, 20565218138), (2, 10282609069), (17, 1209718714), (19, 1082379902), (34, 604859357), (38, 541189951), (131, 156986398), (262, 78493199), (323, 63669406), (487, 42228374), (499, 41212862), (646, 31834703), (974, 21114187), (998, 20606431), (2227, 9234494), (2489, 8262442), (4454, 4617247), (4978, 4131221), (8279, 2484022), (8483, 2424286), (9253, 2222546), (9481, 2169098), (16558, 1242011), (16966, 1212143), (18506, 1111273), (18962, 1084549), (42313, 486026), (63797, 322354), (65369, 314602), (84626, 243013), (127594, 161177), (130738, 157301)]