20827140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4889}}^1$

素因数の和:4972

約数の個数: 48

約数和(自身を含む): 59149440

約数和(自身を除く): 38322300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4889, 9778, 14667, 19556, 24445, 29334, 48890, 58668, 73335, 97780, 146670, 293340, 347119, 694238, 1041357, 1388476, 1735595, 2082714, 3471190, 4165428, 5206785, 6942380, 10413570, 20827140]

約数ペア:

[(1, 20827140), (2, 10413570), (3, 6942380), (4, 5206785), (5, 4165428), (6, 3471190), (10, 2082714), (12, 1735595), (15, 1388476), (20, 1041357), (30, 694238), (60, 347119), (71, 293340), (142, 146670), (213, 97780), (284, 73335), (355, 58668), (426, 48890), (710, 29334), (852, 24445), (1065, 19556), (1420, 14667), (2130, 9778), (4260, 4889)]