9991540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{463}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 22917888

約数和(自身を除く): 12926348

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 130, 166, 260, 332, 415, 463, 830, 926, 1079, 1660, 1852, 2158, 2315, 4316, 4630, 5395, 6019, 9260, 10790, 12038, 21580, 24076, 30095, 38429, 60190, 76858, 120380, 153716, 192145, 384290, 499577, 768580, 999154, 1998308, 2497885, 4995770, 9991540]

約数ペア:

[(1, 9991540), (2, 4995770), (4, 2497885), (5, 1998308), (10, 999154), (13, 768580), (20, 499577), (26, 384290), (52, 192145), (65, 153716), (83, 120380), (130, 76858), (166, 60190), (260, 38429), (332, 30095), (415, 24076), (463, 21580), (830, 12038), (926, 10790), (1079, 9260), (1660, 6019), (1852, 5395), (2158, 4630), (2315, 4316)]