28065490

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:538

約数の個数: 32

約数和(自身を含む): 51871680

約数和(自身を除く): 23806190

約数列:

[1, 2, 5, 10, 61, 122, 139, 278, 305, 331, 610, 662, 695, 1390, 1655, 3310, 8479, 16958, 20191, 40382, 42395, 46009, 84790, 92018, 100955, 201910, 230045, 460090, 2806549, 5613098, 14032745, 28065490]

約数ペア:

[(1, 28065490), (2, 14032745), (5, 5613098), (10, 2806549), (61, 460090), (122, 230045), (139, 201910), (278, 100955), (305, 92018), (331, 84790), (610, 46009), (662, 42395), (695, 40382), (1390, 20191), (1655, 16958), (3310, 8479)]