20731140

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:279

約数の個数: 120

約数和(自身を含む): 66350592

約数和(自身を除く): 45619452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 67, 81, 90, 108, 134, 135, 162, 180, 191, 201, 268, 270, 324, 335, 382, 402, 405, 540, 573, 603, 670, 764, 804, 810, 955, 1005, 1146, 1206, 1340, 1620, 1719, 1809, 1910, 2010, 2292, 2412, 2865, 3015, 3438, 3618, 3820, 4020, 5157, 5427, 5730, 6030, 6876, 7236, 8595, 9045, 10314, 10854, 11460, 12060, 12797, 15471, 17190, 18090, 20628, 21708, 25594, 25785, 27135, 30942, 34380, 36180, 38391, 51188, 51570, 54270, 61884, 63985, 76782, 77355, 103140, 108540, 115173, 127970, 153564, 154710, 191955, 230346, 255940, 309420, 345519, 383910, 460692, 575865, 691038, 767820, 1036557, 1151730, 1382076, 1727595, 2073114, 2303460, 3455190, 4146228, 5182785, 6910380, 10365570, 20731140]

約数ペア:

[(1, 20731140), (2, 10365570), (3, 6910380), (4, 5182785), (5, 4146228), (6, 3455190), (9, 2303460), (10, 2073114), (12, 1727595), (15, 1382076), (18, 1151730), (20, 1036557), (27, 767820), (30, 691038), (36, 575865), (45, 460692), (54, 383910), (60, 345519), (67, 309420), (81, 255940), (90, 230346), (108, 191955), (134, 154710), (135, 153564), (162, 127970), (180, 115173), (191, 108540), (201, 103140), (268, 77355), (270, 76782), (324, 63985), (335, 61884), (382, 54270), (402, 51570), (405, 51188), (540, 38391), (573, 36180), (603, 34380), (670, 30942), (764, 27135), (804, 25785), (810, 25594), (955, 21708), (1005, 20628), (1146, 18090), (1206, 17190), (1340, 15471), (1620, 12797), (1719, 12060), (1809, 11460), (1910, 10854), (2010, 10314), (2292, 9045), (2412, 8595), (2865, 7236), (3015, 6876), (3438, 6030), (3618, 5730), (3820, 5427), (4020, 5157)]