1289080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:128

約数の個数: 64

約数和(自身を含む): 3255840

約数和(自身を除く): 1966760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 67, 74, 104, 130, 134, 148, 185, 260, 268, 296, 335, 370, 481, 520, 536, 670, 740, 871, 962, 1340, 1480, 1742, 1924, 2405, 2479, 2680, 3484, 3848, 4355, 4810, 4958, 6968, 8710, 9620, 9916, 12395, 17420, 19240, 19832, 24790, 32227, 34840, 49580, 64454, 99160, 128908, 161135, 257816, 322270, 644540, 1289080]

約数ペア:

[(1, 1289080), (2, 644540), (4, 322270), (5, 257816), (8, 161135), (10, 128908), (13, 99160), (20, 64454), (26, 49580), (37, 34840), (40, 32227), (52, 24790), (65, 19832), (67, 19240), (74, 17420), (104, 12395), (130, 9916), (134, 9620), (148, 8710), (185, 6968), (260, 4958), (268, 4810), (296, 4355), (335, 3848), (370, 3484), (481, 2680), (520, 2479), (536, 2405), (670, 1924), (740, 1742), (871, 1480), (962, 1340)]