20165173088

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{449153}}^1$

素因数の和:449247

約数の個数: 48

約数和(自身を含む): 42105492576

約数和(自身を除く): 21940319488

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 61, 92, 122, 184, 244, 368, 488, 736, 976, 1403, 1952, 2806, 5612, 11224, 22448, 44896, 449153, 898306, 1796612, 3593224, 7186448, 10330519, 14372896, 20661038, 27398333, 41322076, 54796666, 82644152, 109593332, 165288304, 219186664, 330576608, 438373328, 630161659, 876746656, 1260323318, 2520646636, 5041293272, 10082586544, 20165173088]

約数ペア:

[(1, 20165173088), (2, 10082586544), (4, 5041293272), (8, 2520646636), (16, 1260323318), (23, 876746656), (32, 630161659), (46, 438373328), (61, 330576608), (92, 219186664), (122, 165288304), (184, 109593332), (244, 82644152), (368, 54796666), (488, 41322076), (736, 27398333), (976, 20661038), (1403, 14372896), (1952, 10330519), (2806, 7186448), (5612, 3593224), (11224, 1796612), (22448, 898306), (44896, 449153)]