40838640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{647}}^1$

素因数の和:926

約数の個数: 80

約数和(自身を含む): 127277568

約数和(自身を除く): 86438928

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 263, 526, 647, 789, 1052, 1294, 1315, 1578, 1941, 2104, 2588, 2630, 3156, 3235, 3882, 3945, 4208, 5176, 5260, 6312, 6470, 7764, 7890, 9705, 10352, 10520, 12624, 12940, 15528, 15780, 19410, 21040, 25880, 31056, 31560, 38820, 51760, 63120, 77640, 155280, 170161, 340322, 510483, 680644, 850805, 1020966, 1361288, 1701610, 2041932, 2552415, 2722576, 3403220, 4083864, 5104830, 6806440, 8167728, 10209660, 13612880, 20419320, 40838640]

約数ペア:

[(1, 40838640), (2, 20419320), (3, 13612880), (4, 10209660), (5, 8167728), (6, 6806440), (8, 5104830), (10, 4083864), (12, 3403220), (15, 2722576), (16, 2552415), (20, 2041932), (24, 1701610), (30, 1361288), (40, 1020966), (48, 850805), (60, 680644), (80, 510483), (120, 340322), (240, 170161), (263, 155280), (526, 77640), (647, 63120), (789, 51760), (1052, 38820), (1294, 31560), (1315, 31056), (1578, 25880), (1941, 21040), (2104, 19410), (2588, 15780), (2630, 15528), (3156, 12940), (3235, 12624), (3882, 10520), (3945, 10352), (4208, 9705), (5176, 7890), (5260, 7764), (6312, 6470)]