64161880

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 148716000

約数和(自身を除く): 84554120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 89, 134, 178, 268, 269, 335, 356, 445, 536, 538, 670, 712, 890, 1076, 1340, 1345, 1780, 2152, 2680, 2690, 3560, 5380, 5963, 10760, 11926, 18023, 23852, 23941, 29815, 36046, 47704, 47882, 59630, 72092, 90115, 95764, 119260, 119705, 144184, 180230, 191528, 238520, 239410, 360460, 478820, 720920, 957640, 1604047, 3208094, 6416188, 8020235, 12832376, 16040470, 32080940, 64161880]

約数ペア:

[(1, 64161880), (2, 32080940), (4, 16040470), (5, 12832376), (8, 8020235), (10, 6416188), (20, 3208094), (40, 1604047), (67, 957640), (89, 720920), (134, 478820), (178, 360460), (268, 239410), (269, 238520), (335, 191528), (356, 180230), (445, 144184), (536, 119705), (538, 119260), (670, 95764), (712, 90115), (890, 72092), (1076, 59630), (1340, 47882), (1345, 47704), (1780, 36046), (2152, 29815), (2680, 23941), (2690, 23852), (3560, 18023), (5380, 11926), (5963, 10760)]