261274480

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{953}}^1$

素因数の和:1138

約数の個数: 80

約数和(自身を含む): 638798400

約数和(自身を除く): 377523920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 149, 184, 230, 298, 368, 460, 596, 745, 920, 953, 1192, 1490, 1840, 1906, 2384, 2980, 3427, 3812, 4765, 5960, 6854, 7624, 9530, 11920, 13708, 15248, 17135, 19060, 21919, 27416, 34270, 38120, 43838, 54832, 68540, 76240, 87676, 109595, 137080, 141997, 175352, 219190, 274160, 283994, 350704, 438380, 567988, 709985, 876760, 1135976, 1419970, 1753520, 2271952, 2839940, 3265931, 5679880, 6531862, 11359760, 13063724, 16329655, 26127448, 32659310, 52254896, 65318620, 130637240, 261274480]

約数ペア:

[(1, 261274480), (2, 130637240), (4, 65318620), (5, 52254896), (8, 32659310), (10, 26127448), (16, 16329655), (20, 13063724), (23, 11359760), (40, 6531862), (46, 5679880), (80, 3265931), (92, 2839940), (115, 2271952), (149, 1753520), (184, 1419970), (230, 1135976), (298, 876760), (368, 709985), (460, 567988), (596, 438380), (745, 350704), (920, 283994), (953, 274160), (1192, 219190), (1490, 175352), (1840, 141997), (1906, 137080), (2384, 109595), (2980, 87676), (3427, 76240), (3812, 68540), (4765, 54832), (5960, 43838), (6854, 38120), (7624, 34270), (9530, 27416), (11920, 21919), (13708, 19060), (15248, 17135)]