31981140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1399}}^1$

素因数の和:1541

約数の個数: 72

約数和(自身を含む): 97843200

約数和(自身を除く): 65862060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 1143, 1270, 1399, 1524, 1905, 2286, 2540, 2798, 3810, 4197, 4572, 5596, 5715, 6995, 7620, 8394, 11430, 12591, 13990, 16788, 20985, 22860, 25182, 27980, 41970, 50364, 62955, 83940, 125910, 177673, 251820, 355346, 533019, 710692, 888365, 1066038, 1599057, 1776730, 2132076, 2665095, 3198114, 3553460, 5330190, 6396228, 7995285, 10660380, 15990570, 31981140]

約数ペア:

[(1, 31981140), (2, 15990570), (3, 10660380), (4, 7995285), (5, 6396228), (6, 5330190), (9, 3553460), (10, 3198114), (12, 2665095), (15, 2132076), (18, 1776730), (20, 1599057), (30, 1066038), (36, 888365), (45, 710692), (60, 533019), (90, 355346), (127, 251820), (180, 177673), (254, 125910), (381, 83940), (508, 62955), (635, 50364), (762, 41970), (1143, 27980), (1270, 25182), (1399, 22860), (1524, 20985), (1905, 16788), (2286, 13990), (2540, 12591), (2798, 11430), (3810, 8394), (4197, 7620), (4572, 6995), (5596, 5715)]