490881640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{8747}}^1$

素因数の和:8842

約数の個数: 64

約数和(自身を含む): 1171532160

約数和(自身を除く): 680650520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 61, 92, 115, 122, 184, 230, 244, 305, 460, 488, 610, 920, 1220, 1403, 2440, 2806, 5612, 7015, 8747, 11224, 14030, 17494, 28060, 34988, 43735, 56120, 69976, 87470, 174940, 201181, 349880, 402362, 533567, 804724, 1005905, 1067134, 1609448, 2011810, 2134268, 2667835, 4023620, 4268536, 5335670, 8047240, 10671340, 12272041, 21342680, 24544082, 49088164, 61360205, 98176328, 122720410, 245440820, 490881640]

約数ペア:

[(1, 490881640), (2, 245440820), (4, 122720410), (5, 98176328), (8, 61360205), (10, 49088164), (20, 24544082), (23, 21342680), (40, 12272041), (46, 10671340), (61, 8047240), (92, 5335670), (115, 4268536), (122, 4023620), (184, 2667835), (230, 2134268), (244, 2011810), (305, 1609448), (460, 1067134), (488, 1005905), (610, 804724), (920, 533567), (1220, 402362), (1403, 349880), (2440, 201181), (2806, 174940), (5612, 87470), (7015, 69976), (8747, 56120), (11224, 43735), (14030, 34988), (17494, 28060)]