9901090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^2$

素因数の和:139

約数の個数: 48

約数和(自身を含む): 19848960

約数和(自身を除く): 9947870

約数列:

[1, 2, 5, 10, 19, 31, 38, 41, 62, 82, 95, 155, 190, 205, 310, 410, 589, 779, 1178, 1271, 1558, 1681, 2542, 2945, 3362, 3895, 5890, 6355, 7790, 8405, 12710, 16810, 24149, 31939, 48298, 52111, 63878, 104222, 120745, 159695, 241490, 260555, 319390, 521110, 990109, 1980218, 4950545, 9901090]

約数ペア:

[(1, 9901090), (2, 4950545), (5, 1980218), (10, 990109), (19, 521110), (31, 319390), (38, 260555), (41, 241490), (62, 159695), (82, 120745), (95, 104222), (155, 63878), (190, 52111), (205, 48298), (310, 31939), (410, 24149), (589, 16810), (779, 12710), (1178, 8405), (1271, 7790), (1558, 6355), (1681, 5890), (2542, 3895), (2945, 3362)]