80940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:102

約数の個数: 48

約数和(自身を含む): 241920

約数和(自身を除く): 160980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 71, 76, 95, 114, 142, 190, 213, 228, 284, 285, 355, 380, 426, 570, 710, 852, 1065, 1140, 1349, 1420, 2130, 2698, 4047, 4260, 5396, 6745, 8094, 13490, 16188, 20235, 26980, 40470, 80940]

約数ペア:

[(1, 80940), (2, 40470), (3, 26980), (4, 20235), (5, 16188), (6, 13490), (10, 8094), (12, 6745), (15, 5396), (19, 4260), (20, 4047), (30, 2698), (38, 2130), (57, 1420), (60, 1349), (71, 1140), (76, 1065), (95, 852), (114, 710), (142, 570), (190, 426), (213, 380), (228, 355), (284, 285)]