28654990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31489}}^1$

素因数の和:31516

約数の個数: 32

約数和(自身を含む): 63483840

約数和(自身を除く): 34828850

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 31489, 62978, 157445, 220423, 314890, 409357, 440846, 818714, 1102115, 2046785, 2204230, 2865499, 4093570, 5730998, 14327495, 28654990]

約数ペア:

[(1, 28654990), (2, 14327495), (5, 5730998), (7, 4093570), (10, 2865499), (13, 2204230), (14, 2046785), (26, 1102115), (35, 818714), (65, 440846), (70, 409357), (91, 314890), (130, 220423), (182, 157445), (455, 62978), (910, 31489)]