80667920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{727}}^1$

素因数の和:832

約数の個数: 80

約数和(自身を含む): 200403840

約数和(自身を除く): 119735920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 73, 76, 80, 95, 146, 152, 190, 292, 304, 365, 380, 584, 727, 730, 760, 1168, 1387, 1454, 1460, 1520, 2774, 2908, 2920, 3635, 5548, 5816, 5840, 6935, 7270, 11096, 11632, 13813, 13870, 14540, 22192, 27626, 27740, 29080, 53071, 55252, 55480, 58160, 69065, 106142, 110504, 110960, 138130, 212284, 221008, 265355, 276260, 424568, 530710, 552520, 849136, 1008349, 1061420, 1105040, 2016698, 2122840, 4033396, 4245680, 5041745, 8066792, 10083490, 16133584, 20166980, 40333960, 80667920]

約数ペア:

[(1, 80667920), (2, 40333960), (4, 20166980), (5, 16133584), (8, 10083490), (10, 8066792), (16, 5041745), (19, 4245680), (20, 4033396), (38, 2122840), (40, 2016698), (73, 1105040), (76, 1061420), (80, 1008349), (95, 849136), (146, 552520), (152, 530710), (190, 424568), (292, 276260), (304, 265355), (365, 221008), (380, 212284), (584, 138130), (727, 110960), (730, 110504), (760, 106142), (1168, 69065), (1387, 58160), (1454, 55480), (1460, 55252), (1520, 53071), (2774, 29080), (2908, 27740), (2920, 27626), (3635, 22192), (5548, 14540), (5816, 13870), (5840, 13813), (6935, 11632), (7270, 11096)]