890421420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{2120051}}^1$

素因数の和:2120070

約数の個数: 48

約数和(自身を含む): 2849349888

約数和(自身を除く): 1958928468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 2120051, 4240102, 6360153, 8480204, 10600255, 12720306, 14840357, 21200510, 25440612, 29680714, 31800765, 42401020, 44521071, 59361428, 63601530, 74201785, 89042142, 127203060, 148403570, 178084284, 222605355, 296807140, 445210710, 890421420]

約数ペア:

[(1, 890421420), (2, 445210710), (3, 296807140), (4, 222605355), (5, 178084284), (6, 148403570), (7, 127203060), (10, 89042142), (12, 74201785), (14, 63601530), (15, 59361428), (20, 44521071), (21, 42401020), (28, 31800765), (30, 29680714), (35, 25440612), (42, 21200510), (60, 14840357), (70, 12720306), (84, 10600255), (105, 8480204), (140, 6360153), (210, 4240102), (420, 2120051)]