28502030

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{431}}^1$

素因数の和:844

約数の個数: 32

約数和(自身を含む): 54587520

約数和(自身を除く): 26085490

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 389, 431, 778, 862, 1945, 2155, 3890, 4310, 6613, 7327, 13226, 14654, 33065, 36635, 66130, 73270, 167659, 335318, 838295, 1676590, 2850203, 5700406, 14251015, 28502030]

約数ペア:

[(1, 28502030), (2, 14251015), (5, 5700406), (10, 2850203), (17, 1676590), (34, 838295), (85, 335318), (170, 167659), (389, 73270), (431, 66130), (778, 36635), (862, 33065), (1945, 14654), (2155, 13226), (3890, 7327), (4310, 6613)]