51201540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21881}}^1$

素因数の和:21909

約数の個数: 72

約数和(自身を含む): 167266008

約数和(自身を除く): 116064468

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 21881, 43762, 65643, 87524, 109405, 131286, 196929, 218810, 262572, 284453, 328215, 393858, 437620, 568906, 656430, 787716, 853359, 984645, 1137812, 1312860, 1422265, 1706718, 1969290, 2560077, 2844530, 3413436, 3938580, 4266795, 5120154, 5689060, 8533590, 10240308, 12800385, 17067180, 25600770, 51201540]

約数ペア:

[(1, 51201540), (2, 25600770), (3, 17067180), (4, 12800385), (5, 10240308), (6, 8533590), (9, 5689060), (10, 5120154), (12, 4266795), (13, 3938580), (15, 3413436), (18, 2844530), (20, 2560077), (26, 1969290), (30, 1706718), (36, 1422265), (39, 1312860), (45, 1137812), (52, 984645), (60, 853359), (65, 787716), (78, 656430), (90, 568906), (117, 437620), (130, 393858), (156, 328215), (180, 284453), (195, 262572), (234, 218810), (260, 196929), (390, 131286), (468, 109405), (585, 87524), (780, 65643), (1170, 43762), (2340, 21881)]