81816720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{340903}}^1$

素因数の和:340919

約数の個数: 40

約数和(自身を含む): 253632576

約数和(自身を除く): 171815856

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 340903, 681806, 1022709, 1363612, 1704515, 2045418, 2727224, 3409030, 4090836, 5113545, 5454448, 6818060, 8181672, 10227090, 13636120, 16363344, 20454180, 27272240, 40908360, 81816720]

約数ペア:

[(1, 81816720), (2, 40908360), (3, 27272240), (4, 20454180), (5, 16363344), (6, 13636120), (8, 10227090), (10, 8181672), (12, 6818060), (15, 5454448), (16, 5113545), (20, 4090836), (24, 3409030), (30, 2727224), (40, 2045418), (48, 1704515), (60, 1363612), (80, 1022709), (120, 681806), (240, 340903)]