30991920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{491}}^1$

素因数の和:770

約数の個数: 80

約数和(自身を含む): 96636672

約数和(自身を除く): 65644752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 263, 491, 526, 789, 982, 1052, 1315, 1473, 1578, 1964, 2104, 2455, 2630, 2946, 3156, 3928, 3945, 4208, 4910, 5260, 5892, 6312, 7365, 7856, 7890, 9820, 10520, 11784, 12624, 14730, 15780, 19640, 21040, 23568, 29460, 31560, 39280, 58920, 63120, 117840, 129133, 258266, 387399, 516532, 645665, 774798, 1033064, 1291330, 1549596, 1936995, 2066128, 2582660, 3099192, 3873990, 5165320, 6198384, 7747980, 10330640, 15495960, 30991920]

約数ペア:

[(1, 30991920), (2, 15495960), (3, 10330640), (4, 7747980), (5, 6198384), (6, 5165320), (8, 3873990), (10, 3099192), (12, 2582660), (15, 2066128), (16, 1936995), (20, 1549596), (24, 1291330), (30, 1033064), (40, 774798), (48, 645665), (60, 516532), (80, 387399), (120, 258266), (240, 129133), (263, 117840), (491, 63120), (526, 58920), (789, 39280), (982, 31560), (1052, 29460), (1315, 23568), (1473, 21040), (1578, 19640), (1964, 15780), (2104, 14730), (2455, 12624), (2630, 11784), (2946, 10520), (3156, 9820), (3928, 7890), (3945, 7856), (4208, 7365), (4910, 6312), (5260, 5892)]