28300220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1223}}^1$

素因数の和:1334

約数の個数: 48

約数和(自身を含む): 64774080

約数和(自身を除く): 36473860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1223, 1780, 2314, 2446, 4628, 4892, 5785, 6115, 11570, 12230, 15899, 23140, 24460, 31798, 63596, 79495, 108847, 158990, 217694, 317980, 435388, 544235, 1088470, 1415011, 2176940, 2830022, 5660044, 7075055, 14150110, 28300220]

約数ペア:

[(1, 28300220), (2, 14150110), (4, 7075055), (5, 5660044), (10, 2830022), (13, 2176940), (20, 1415011), (26, 1088470), (52, 544235), (65, 435388), (89, 317980), (130, 217694), (178, 158990), (260, 108847), (356, 79495), (445, 63596), (890, 31798), (1157, 24460), (1223, 23140), (1780, 15899), (2314, 12230), (2446, 11570), (4628, 6115), (4892, 5785)]