280627760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{501121}}^1$

素因数の和:501141

約数の個数: 40

約数和(自身を含む): 745669536

約数和(自身を除く): 465041776

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 501121, 1002242, 2004484, 2505605, 3507847, 4008968, 5011210, 7015694, 8017936, 10022420, 14031388, 17539235, 20044840, 28062776, 35078470, 40089680, 56125552, 70156940, 140313880, 280627760]

約数ペア:

[(1, 280627760), (2, 140313880), (4, 70156940), (5, 56125552), (7, 40089680), (8, 35078470), (10, 28062776), (14, 20044840), (16, 17539235), (20, 14031388), (28, 10022420), (35, 8017936), (40, 7015694), (56, 5011210), (70, 4008968), (80, 3507847), (112, 2505605), (140, 2004484), (280, 1002242), (560, 501121)]