20703240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{439}}^1$

素因数の和:587

約数の個数: 96

約数和(自身を含む): 67953600

約数和(自身を除く): 47250360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 131, 180, 262, 360, 393, 439, 524, 655, 786, 878, 1048, 1179, 1310, 1317, 1572, 1756, 1965, 2195, 2358, 2620, 2634, 3144, 3512, 3930, 3951, 4390, 4716, 5240, 5268, 5895, 6585, 7860, 7902, 8780, 9432, 10536, 11790, 13170, 15720, 15804, 17560, 19755, 23580, 26340, 31608, 39510, 47160, 52680, 57509, 79020, 115018, 158040, 172527, 230036, 287545, 345054, 460072, 517581, 575090, 690108, 862635, 1035162, 1150180, 1380216, 1725270, 2070324, 2300360, 2587905, 3450540, 4140648, 5175810, 6901080, 10351620, 20703240]

約数ペア:

[(1, 20703240), (2, 10351620), (3, 6901080), (4, 5175810), (5, 4140648), (6, 3450540), (8, 2587905), (9, 2300360), (10, 2070324), (12, 1725270), (15, 1380216), (18, 1150180), (20, 1035162), (24, 862635), (30, 690108), (36, 575090), (40, 517581), (45, 460072), (60, 345054), (72, 287545), (90, 230036), (120, 172527), (131, 158040), (180, 115018), (262, 79020), (360, 57509), (393, 52680), (439, 47160), (524, 39510), (655, 31608), (786, 26340), (878, 23580), (1048, 19755), (1179, 17560), (1310, 15804), (1317, 15720), (1572, 13170), (1756, 11790), (1965, 10536), (2195, 9432), (2358, 8780), (2620, 7902), (2634, 7860), (3144, 6585), (3512, 5895), (3930, 5268), (3951, 5240), (4390, 4716)]