28970890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{13109}}^1$

素因数の和:13146

約数の個数: 32

約数和(自身を含む): 59466960

約数和(自身を除く): 30496070

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 13109, 26218, 65545, 131090, 170417, 222853, 340834, 445706, 852085, 1114265, 1704170, 2228530, 2897089, 5794178, 14485445, 28970890]

約数ペア:

[(1, 28970890), (2, 14485445), (5, 5794178), (10, 2897089), (13, 2228530), (17, 1704170), (26, 1114265), (34, 852085), (65, 445706), (85, 340834), (130, 222853), (170, 170417), (221, 131090), (442, 65545), (1105, 26218), (2210, 13109)]