79278140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{541}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 177012864

約数和(自身を除く): 97734724

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 431, 541, 862, 1082, 1724, 2155, 2164, 2705, 4310, 5410, 7327, 8620, 9197, 10820, 14654, 18394, 29308, 36635, 36788, 45985, 73270, 91970, 146540, 183940, 233171, 466342, 932684, 1165855, 2331710, 3963907, 4663420, 7927814, 15855628, 19819535, 39639070, 79278140]

約数ペア:

[(1, 79278140), (2, 39639070), (4, 19819535), (5, 15855628), (10, 7927814), (17, 4663420), (20, 3963907), (34, 2331710), (68, 1165855), (85, 932684), (170, 466342), (340, 233171), (431, 183940), (541, 146540), (862, 91970), (1082, 73270), (1724, 45985), (2155, 36788), (2164, 36635), (2705, 29308), (4310, 18394), (5410, 14654), (7327, 10820), (8620, 9197)]