28416920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101489}}^1$

素因数の和:101507

約数の個数: 32

約数和(自身を含む): 73072800

約数和(自身を除く): 44655880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 101489, 202978, 405956, 507445, 710423, 811912, 1014890, 1420846, 2029780, 2841692, 3552115, 4059560, 5683384, 7104230, 14208460, 28416920]

約数ペア:

[(1, 28416920), (2, 14208460), (4, 7104230), (5, 5683384), (7, 4059560), (8, 3552115), (10, 2841692), (14, 2029780), (20, 1420846), (28, 1014890), (35, 811912), (40, 710423), (56, 507445), (70, 405956), (140, 202978), (280, 101489)]