20585340

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:249

約数の個数: 120

約数和(自身を含む): 65740752

約数和(自身を除く): 45155412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 97, 108, 131, 135, 162, 180, 194, 262, 270, 291, 324, 388, 393, 405, 485, 524, 540, 582, 655, 786, 810, 873, 970, 1164, 1179, 1310, 1455, 1572, 1620, 1746, 1940, 1965, 2358, 2619, 2620, 2910, 3492, 3537, 3930, 4365, 4716, 5238, 5820, 5895, 7074, 7857, 7860, 8730, 10476, 10611, 11790, 12707, 13095, 14148, 15714, 17460, 17685, 21222, 23580, 25414, 26190, 31428, 35370, 38121, 39285, 42444, 50828, 52380, 53055, 63535, 70740, 76242, 78570, 106110, 114363, 127070, 152484, 157140, 190605, 212220, 228726, 254140, 343089, 381210, 457452, 571815, 686178, 762420, 1029267, 1143630, 1372356, 1715445, 2058534, 2287260, 3430890, 4117068, 5146335, 6861780, 10292670, 20585340]

約数ペア:

[(1, 20585340), (2, 10292670), (3, 6861780), (4, 5146335), (5, 4117068), (6, 3430890), (9, 2287260), (10, 2058534), (12, 1715445), (15, 1372356), (18, 1143630), (20, 1029267), (27, 762420), (30, 686178), (36, 571815), (45, 457452), (54, 381210), (60, 343089), (81, 254140), (90, 228726), (97, 212220), (108, 190605), (131, 157140), (135, 152484), (162, 127070), (180, 114363), (194, 106110), (262, 78570), (270, 76242), (291, 70740), (324, 63535), (388, 53055), (393, 52380), (405, 50828), (485, 42444), (524, 39285), (540, 38121), (582, 35370), (655, 31428), (786, 26190), (810, 25414), (873, 23580), (970, 21222), (1164, 17685), (1179, 17460), (1310, 15714), (1455, 14148), (1572, 13095), (1620, 12707), (1746, 11790), (1940, 10611), (1965, 10476), (2358, 8730), (2619, 7860), (2620, 7857), (2910, 7074), (3492, 5895), (3537, 5820), (3930, 5238), (4365, 4716)]