79685420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{419}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 172942560

約数和(自身を除く): 93257140

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 257, 370, 419, 514, 740, 838, 1028, 1285, 1676, 2095, 2570, 4190, 5140, 8380, 9509, 15503, 19018, 31006, 38036, 47545, 62012, 77515, 95090, 107683, 155030, 190180, 215366, 310060, 430732, 538415, 1076830, 2153660, 3984271, 7968542, 15937084, 19921355, 39842710, 79685420]

約数ペア:

[(1, 79685420), (2, 39842710), (4, 19921355), (5, 15937084), (10, 7968542), (20, 3984271), (37, 2153660), (74, 1076830), (148, 538415), (185, 430732), (257, 310060), (370, 215366), (419, 190180), (514, 155030), (740, 107683), (838, 95090), (1028, 77515), (1285, 62012), (1676, 47545), (2095, 38036), (2570, 31006), (4190, 19018), (5140, 15503), (8380, 9509)]