28411420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83563}}^1$

素因数の和:83589

約数の個数: 24

約数和(自身を含む): 63174384

約数和(自身を除く): 34762964

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 83563, 167126, 334252, 417815, 835630, 1420571, 1671260, 2841142, 5682284, 7102855, 14205710, 28411420]

約数ペア:

[(1, 28411420), (2, 14205710), (4, 7102855), (5, 5682284), (10, 2841142), (17, 1671260), (20, 1420571), (34, 835630), (68, 417815), (85, 334252), (170, 167126), (340, 83563)]