79995320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1571}}^1$

素因数の和:1668

約数の個数: 64

約数和(自身を含む): 192412800

約数和(自身を除く): 112417480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 67, 76, 95, 134, 152, 190, 268, 335, 380, 536, 670, 760, 1273, 1340, 1571, 2546, 2680, 3142, 5092, 6284, 6365, 7855, 10184, 12568, 12730, 15710, 25460, 29849, 31420, 50920, 59698, 62840, 105257, 119396, 149245, 210514, 238792, 298490, 421028, 526285, 596980, 842056, 1052570, 1193960, 1999883, 2105140, 3999766, 4210280, 7999532, 9999415, 15999064, 19998830, 39997660, 79995320]

約数ペア:

[(1, 79995320), (2, 39997660), (4, 19998830), (5, 15999064), (8, 9999415), (10, 7999532), (19, 4210280), (20, 3999766), (38, 2105140), (40, 1999883), (67, 1193960), (76, 1052570), (95, 842056), (134, 596980), (152, 526285), (190, 421028), (268, 298490), (335, 238792), (380, 210514), (536, 149245), (670, 119396), (760, 105257), (1273, 62840), (1340, 59698), (1571, 50920), (2546, 31420), (2680, 29849), (3142, 25460), (5092, 15710), (6284, 12730), (6365, 12568), (7855, 10184)]