20659440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1459}}^1$

素因数の和:1534

約数の個数: 80

約数和(自身を含む): 65174400

約数和(自身を除く): 44514960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 59, 60, 80, 118, 120, 177, 236, 240, 295, 354, 472, 590, 708, 885, 944, 1180, 1416, 1459, 1770, 2360, 2832, 2918, 3540, 4377, 4720, 5836, 7080, 7295, 8754, 11672, 14160, 14590, 17508, 21885, 23344, 29180, 35016, 43770, 58360, 70032, 86081, 87540, 116720, 172162, 175080, 258243, 344324, 350160, 430405, 516486, 688648, 860810, 1032972, 1291215, 1377296, 1721620, 2065944, 2582430, 3443240, 4131888, 5164860, 6886480, 10329720, 20659440]

約数ペア:

[(1, 20659440), (2, 10329720), (3, 6886480), (4, 5164860), (5, 4131888), (6, 3443240), (8, 2582430), (10, 2065944), (12, 1721620), (15, 1377296), (16, 1291215), (20, 1032972), (24, 860810), (30, 688648), (40, 516486), (48, 430405), (59, 350160), (60, 344324), (80, 258243), (118, 175080), (120, 172162), (177, 116720), (236, 87540), (240, 86081), (295, 70032), (354, 58360), (472, 43770), (590, 35016), (708, 29180), (885, 23344), (944, 21885), (1180, 17508), (1416, 14590), (1459, 14160), (1770, 11672), (2360, 8754), (2832, 7295), (2918, 7080), (3540, 5836), (4377, 4720)]