61905420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{787}}^1$

素因数の和:844

約数の個数: 144

約数和(自身を含む): 206519040

約数和(自身を除く): 144613620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 30, 36, 38, 45, 46, 57, 60, 69, 76, 90, 92, 95, 114, 115, 138, 171, 180, 190, 207, 228, 230, 276, 285, 342, 345, 380, 414, 437, 460, 570, 684, 690, 787, 828, 855, 874, 1035, 1140, 1311, 1380, 1574, 1710, 1748, 2070, 2185, 2361, 2622, 3148, 3420, 3933, 3935, 4140, 4370, 4722, 5244, 6555, 7083, 7866, 7870, 8740, 9444, 11805, 13110, 14166, 14953, 15732, 15740, 18101, 19665, 23610, 26220, 28332, 29906, 35415, 36202, 39330, 44859, 47220, 54303, 59812, 70830, 72404, 74765, 78660, 89718, 90505, 108606, 134577, 141660, 149530, 162909, 179436, 181010, 217212, 224295, 269154, 271515, 299060, 325818, 343919, 362020, 448590, 538308, 543030, 651636, 672885, 687838, 814545, 897180, 1031757, 1086060, 1345770, 1375676, 1629090, 1719595, 2063514, 2691540, 3095271, 3258180, 3439190, 4127028, 5158785, 6190542, 6878380, 10317570, 12381084, 15476355, 20635140, 30952710, 61905420]

約数ペア:

[(1, 61905420), (2, 30952710), (3, 20635140), (4, 15476355), (5, 12381084), (6, 10317570), (9, 6878380), (10, 6190542), (12, 5158785), (15, 4127028), (18, 3439190), (19, 3258180), (20, 3095271), (23, 2691540), (30, 2063514), (36, 1719595), (38, 1629090), (45, 1375676), (46, 1345770), (57, 1086060), (60, 1031757), (69, 897180), (76, 814545), (90, 687838), (92, 672885), (95, 651636), (114, 543030), (115, 538308), (138, 448590), (171, 362020), (180, 343919), (190, 325818), (207, 299060), (228, 271515), (230, 269154), (276, 224295), (285, 217212), (342, 181010), (345, 179436), (380, 162909), (414, 149530), (437, 141660), (460, 134577), (570, 108606), (684, 90505), (690, 89718), (787, 78660), (828, 74765), (855, 72404), (874, 70830), (1035, 59812), (1140, 54303), (1311, 47220), (1380, 44859), (1574, 39330), (1710, 36202), (1748, 35415), (2070, 29906), (2185, 28332), (2361, 26220), (2622, 23610), (3148, 19665), (3420, 18101), (3933, 15740), (3935, 15732), (4140, 14953), (4370, 14166), (4722, 13110), (5244, 11805), (6555, 9444), (7083, 8740), (7866, 7870)]