20641530

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7561}}^1$

素因数の和:7591

約数の個数: 64

約数和(自身を含む): 60979968

約数和(自身を除く): 40338438

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7561, 15122, 22683, 37805, 45366, 52927, 75610, 98293, 105854, 113415, 158781, 196586, 226830, 264635, 294879, 317562, 491465, 529270, 589758, 688051, 793905, 982930, 1376102, 1474395, 1587810, 2064153, 2948790, 3440255, 4128306, 6880510, 10320765, 20641530]

約数ペア:

[(1, 20641530), (2, 10320765), (3, 6880510), (5, 4128306), (6, 3440255), (7, 2948790), (10, 2064153), (13, 1587810), (14, 1474395), (15, 1376102), (21, 982930), (26, 793905), (30, 688051), (35, 589758), (39, 529270), (42, 491465), (65, 317562), (70, 294879), (78, 264635), (91, 226830), (105, 196586), (130, 158781), (182, 113415), (195, 105854), (210, 98293), (273, 75610), (390, 52927), (455, 45366), (546, 37805), (910, 22683), (1365, 15122), (2730, 7561)]