401026990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{2237}}^1$

素因数の和:2461

約数の個数: 64

約数和(自身を含む): 893337984

約数和(自身を除く): 492310994

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 197, 394, 455, 910, 985, 1379, 1970, 2237, 2561, 2758, 4474, 5122, 6895, 11185, 12805, 13790, 15659, 17927, 22370, 25610, 29081, 31318, 35854, 58162, 78295, 89635, 145405, 156590, 179270, 203567, 290810, 407134, 440689, 881378, 1017835, 2035670, 2203445, 3084823, 4406890, 5728957, 6169646, 11457914, 15424115, 28644785, 30848230, 40102699, 57289570, 80205398, 200513495, 401026990]

約数ペア:

[(1, 401026990), (2, 200513495), (5, 80205398), (7, 57289570), (10, 40102699), (13, 30848230), (14, 28644785), (26, 15424115), (35, 11457914), (65, 6169646), (70, 5728957), (91, 4406890), (130, 3084823), (182, 2203445), (197, 2035670), (394, 1017835), (455, 881378), (910, 440689), (985, 407134), (1379, 290810), (1970, 203567), (2237, 179270), (2561, 156590), (2758, 145405), (4474, 89635), (5122, 78295), (6895, 58162), (11185, 35854), (12805, 31318), (13790, 29081), (15659, 25610), (17927, 22370)]