20652660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{443}}^1$

素因数の和:502

約数の個数: 144

約数和(自身を含む): 73696896

約数和(自身を除く): 53044236

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 60, 63, 70, 74, 84, 90, 105, 111, 126, 140, 148, 180, 185, 210, 222, 252, 259, 315, 333, 370, 420, 443, 444, 518, 555, 630, 666, 740, 777, 886, 1036, 1110, 1260, 1295, 1329, 1332, 1554, 1665, 1772, 2215, 2220, 2331, 2590, 2658, 3101, 3108, 3330, 3885, 3987, 4430, 4662, 5180, 5316, 6202, 6645, 6660, 7770, 7974, 8860, 9303, 9324, 11655, 12404, 13290, 15505, 15540, 15948, 16391, 18606, 19935, 23310, 26580, 27909, 31010, 32782, 37212, 39870, 46515, 46620, 49173, 55818, 62020, 65564, 79740, 81955, 93030, 98346, 111636, 114737, 139545, 147519, 163910, 186060, 196692, 229474, 245865, 279090, 295038, 327820, 344211, 458948, 491730, 558180, 573685, 590076, 688422, 737595, 983460, 1032633, 1147370, 1376844, 1475190, 1721055, 2065266, 2294740, 2950380, 3442110, 4130532, 5163165, 6884220, 10326330, 20652660]

約数ペア:

[(1, 20652660), (2, 10326330), (3, 6884220), (4, 5163165), (5, 4130532), (6, 3442110), (7, 2950380), (9, 2294740), (10, 2065266), (12, 1721055), (14, 1475190), (15, 1376844), (18, 1147370), (20, 1032633), (21, 983460), (28, 737595), (30, 688422), (35, 590076), (36, 573685), (37, 558180), (42, 491730), (45, 458948), (60, 344211), (63, 327820), (70, 295038), (74, 279090), (84, 245865), (90, 229474), (105, 196692), (111, 186060), (126, 163910), (140, 147519), (148, 139545), (180, 114737), (185, 111636), (210, 98346), (222, 93030), (252, 81955), (259, 79740), (315, 65564), (333, 62020), (370, 55818), (420, 49173), (443, 46620), (444, 46515), (518, 39870), (555, 37212), (630, 32782), (666, 31010), (740, 27909), (777, 26580), (886, 23310), (1036, 19935), (1110, 18606), (1260, 16391), (1295, 15948), (1329, 15540), (1332, 15505), (1554, 13290), (1665, 12404), (1772, 11655), (2215, 9324), (2220, 9303), (2331, 8860), (2590, 7974), (2658, 7770), (3101, 6660), (3108, 6645), (3330, 6202), (3885, 5316), (3987, 5180), (4430, 4662)]