28495870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2011}}^1$

素因数の和:2140

約数の個数: 32

約数和(自身を含む): 55772640

約数和(自身を除く): 27276770

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 218, 545, 1090, 1417, 2011, 2834, 4022, 7085, 10055, 14170, 20110, 26143, 52286, 130715, 219199, 261430, 438398, 1095995, 2191990, 2849587, 5699174, 14247935, 28495870]

約数ペア:

[(1, 28495870), (2, 14247935), (5, 5699174), (10, 2849587), (13, 2191990), (26, 1095995), (65, 438398), (109, 261430), (130, 219199), (218, 130715), (545, 52286), (1090, 26143), (1417, 20110), (2011, 14170), (2834, 10055), (4022, 7085)]