61181720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{617}}^1$

素因数の和:732

約数の個数: 64

約数和(自身を含む): 143722080

約数和(自身を除く): 82540360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 67, 74, 134, 148, 185, 268, 296, 335, 370, 536, 617, 670, 740, 1234, 1340, 1480, 2468, 2479, 2680, 3085, 4936, 4958, 6170, 9916, 12340, 12395, 19832, 22829, 24680, 24790, 41339, 45658, 49580, 82678, 91316, 99160, 114145, 165356, 182632, 206695, 228290, 330712, 413390, 456580, 826780, 913160, 1529543, 1653560, 3059086, 6118172, 7647715, 12236344, 15295430, 30590860, 61181720]

約数ペア:

[(1, 61181720), (2, 30590860), (4, 15295430), (5, 12236344), (8, 7647715), (10, 6118172), (20, 3059086), (37, 1653560), (40, 1529543), (67, 913160), (74, 826780), (134, 456580), (148, 413390), (185, 330712), (268, 228290), (296, 206695), (335, 182632), (370, 165356), (536, 114145), (617, 99160), (670, 91316), (740, 82678), (1234, 49580), (1340, 45658), (1480, 41339), (2468, 24790), (2479, 24680), (2680, 22829), (3085, 19832), (4936, 12395), (4958, 12340), (6170, 9916)]