28137770

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{653}}^1$

素因数の和:830

約数の個数: 32

約数和(自身を含む): 52738560

約数和(自身を除く): 24600790

約数列:

[1, 2, 5, 10, 31, 62, 139, 155, 278, 310, 653, 695, 1306, 1390, 3265, 4309, 6530, 8618, 20243, 21545, 40486, 43090, 90767, 101215, 181534, 202430, 453835, 907670, 2813777, 5627554, 14068885, 28137770]

約数ペア:

[(1, 28137770), (2, 14068885), (5, 5627554), (10, 2813777), (31, 907670), (62, 453835), (139, 202430), (155, 181534), (278, 101215), (310, 90767), (653, 43090), (695, 40486), (1306, 21545), (1390, 20243), (3265, 8618), (4309, 6530)]