1242519760

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{378817}}^1$

素因数の和:378871

約数の個数: 40

約数和(自身を含む): 2959326216

約数和(自身を除く): 1716806456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 378817, 757634, 1515268, 1894085, 3030536, 3788170, 6061072, 7576340, 15152680, 15531497, 30305360, 31062994, 62125988, 77657485, 124251976, 155314970, 248503952, 310629940, 621259880, 1242519760]

約数ペア:

[(1, 1242519760), (2, 621259880), (4, 310629940), (5, 248503952), (8, 155314970), (10, 124251976), (16, 77657485), (20, 62125988), (40, 31062994), (41, 30305360), (80, 15531497), (82, 15152680), (164, 7576340), (205, 6061072), (328, 3788170), (410, 3030536), (656, 1894085), (820, 1515268), (1640, 757634), (3280, 378817)]