78630920

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53129}}^1$

素因数の和:53177

約数の個数: 32

約数和(自身を含む): 181704600

約数和(自身を除く): 103073680

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 53129, 106258, 212516, 265645, 425032, 531290, 1062580, 1965773, 2125160, 3931546, 7863092, 9828865, 15726184, 19657730, 39315460, 78630920]

約数ペア:

[(1, 78630920), (2, 39315460), (4, 19657730), (5, 15726184), (8, 9828865), (10, 7863092), (20, 3931546), (37, 2125160), (40, 1965773), (74, 1062580), (148, 531290), (185, 425032), (296, 265645), (370, 212516), (740, 106258), (1480, 53129)]