20541660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{487}}^1$

素因数の和:555

約数の個数: 96

約数和(自身を含む): 62307840

約数和(自身を除く): 41766180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 37, 38, 57, 60, 74, 76, 95, 111, 114, 148, 185, 190, 222, 228, 285, 370, 380, 444, 487, 555, 570, 703, 740, 974, 1110, 1140, 1406, 1461, 1948, 2109, 2220, 2435, 2812, 2922, 3515, 4218, 4870, 5844, 7030, 7305, 8436, 9253, 9740, 10545, 14060, 14610, 18019, 18506, 21090, 27759, 29220, 36038, 37012, 42180, 46265, 54057, 55518, 72076, 90095, 92530, 108114, 111036, 138795, 180190, 185060, 216228, 270285, 277590, 342361, 360380, 540570, 555180, 684722, 1027083, 1081140, 1369444, 1711805, 2054166, 3423610, 4108332, 5135415, 6847220, 10270830, 20541660]

約数ペア:

[(1, 20541660), (2, 10270830), (3, 6847220), (4, 5135415), (5, 4108332), (6, 3423610), (10, 2054166), (12, 1711805), (15, 1369444), (19, 1081140), (20, 1027083), (30, 684722), (37, 555180), (38, 540570), (57, 360380), (60, 342361), (74, 277590), (76, 270285), (95, 216228), (111, 185060), (114, 180190), (148, 138795), (185, 111036), (190, 108114), (222, 92530), (228, 90095), (285, 72076), (370, 55518), (380, 54057), (444, 46265), (487, 42180), (555, 37012), (570, 36038), (703, 29220), (740, 27759), (974, 21090), (1110, 18506), (1140, 18019), (1406, 14610), (1461, 14060), (1948, 10545), (2109, 9740), (2220, 9253), (2435, 8436), (2812, 7305), (2922, 7030), (3515, 5844), (4218, 4870)]