156679100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{439}}^1$

素因数の和:579

約数の個数: 72

約数和(自身を含む): 352894080

約数和(自身を除く): 196214980

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 83, 86, 100, 166, 172, 215, 332, 415, 430, 439, 830, 860, 878, 1075, 1660, 1756, 2075, 2150, 2195, 3569, 4150, 4300, 4390, 7138, 8300, 8780, 10975, 14276, 17845, 18877, 21950, 35690, 36437, 37754, 43900, 71380, 72874, 75508, 89225, 94385, 145748, 178450, 182185, 188770, 356900, 364370, 377540, 471925, 728740, 910925, 943850, 1566791, 1821850, 1887700, 3133582, 3643700, 6267164, 7833955, 15667910, 31335820, 39169775, 78339550, 156679100]

約数ペア:

[(1, 156679100), (2, 78339550), (4, 39169775), (5, 31335820), (10, 15667910), (20, 7833955), (25, 6267164), (43, 3643700), (50, 3133582), (83, 1887700), (86, 1821850), (100, 1566791), (166, 943850), (172, 910925), (215, 728740), (332, 471925), (415, 377540), (430, 364370), (439, 356900), (830, 188770), (860, 182185), (878, 178450), (1075, 145748), (1660, 94385), (1756, 89225), (2075, 75508), (2150, 72874), (2195, 71380), (3569, 43900), (4150, 37754), (4300, 36437), (4390, 35690), (7138, 21950), (8300, 18877), (8780, 17845), (10975, 14276)]