100321780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:545

約数の個数: 72

約数和(自身を含む): 232055712

約数和(自身を除く): 131733932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 169, 260, 268, 335, 338, 443, 670, 676, 845, 871, 886, 1340, 1690, 1742, 1772, 2215, 3380, 3484, 4355, 4430, 5759, 8710, 8860, 11323, 11518, 17420, 22646, 23036, 28795, 29681, 45292, 56615, 57590, 59362, 74867, 113230, 115180, 118724, 148405, 149734, 226460, 296810, 299468, 374335, 385853, 593620, 748670, 771706, 1497340, 1543412, 1929265, 3858530, 5016089, 7717060, 10032178, 20064356, 25080445, 50160890, 100321780]

約数ペア:

[(1, 100321780), (2, 50160890), (4, 25080445), (5, 20064356), (10, 10032178), (13, 7717060), (20, 5016089), (26, 3858530), (52, 1929265), (65, 1543412), (67, 1497340), (130, 771706), (134, 748670), (169, 593620), (260, 385853), (268, 374335), (335, 299468), (338, 296810), (443, 226460), (670, 149734), (676, 148405), (845, 118724), (871, 115180), (886, 113230), (1340, 74867), (1690, 59362), (1742, 57590), (1772, 56615), (2215, 45292), (3380, 29681), (3484, 28795), (4355, 23036), (4430, 22646), (5759, 17420), (8710, 11518), (8860, 11323)]