87274940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{1303}}^1$

素因数の和:1526

約数の個数: 48

約数和(自身を含む): 195193152

約数和(自身を除く): 107918212

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 340, 394, 788, 985, 1303, 1970, 2606, 3349, 3940, 5212, 6515, 6698, 13030, 13396, 16745, 22151, 26060, 33490, 44302, 66980, 88604, 110755, 221510, 256691, 443020, 513382, 1026764, 1283455, 2566910, 4363747, 5133820, 8727494, 17454988, 21818735, 43637470, 87274940]

約数ペア:

[(1, 87274940), (2, 43637470), (4, 21818735), (5, 17454988), (10, 8727494), (17, 5133820), (20, 4363747), (34, 2566910), (68, 1283455), (85, 1026764), (170, 513382), (197, 443020), (340, 256691), (394, 221510), (788, 110755), (985, 88604), (1303, 66980), (1970, 44302), (2606, 33490), (3349, 26060), (3940, 22151), (5212, 16745), (6515, 13396), (6698, 13030)]