81139140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5431}}^1$

素因数の和:5529

約数の個数: 72

約数和(自身を含む): 249133248

約数和(自身を除く): 167994108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 249, 332, 415, 498, 747, 830, 996, 1245, 1494, 1660, 2490, 2988, 3735, 4980, 5431, 7470, 10862, 14940, 16293, 21724, 27155, 32586, 48879, 54310, 65172, 81465, 97758, 108620, 162930, 195516, 244395, 325860, 450773, 488790, 901546, 977580, 1352319, 1803092, 2253865, 2704638, 4056957, 4507730, 5409276, 6761595, 8113914, 9015460, 13523190, 16227828, 20284785, 27046380, 40569570, 81139140]

約数ペア:

[(1, 81139140), (2, 40569570), (3, 27046380), (4, 20284785), (5, 16227828), (6, 13523190), (9, 9015460), (10, 8113914), (12, 6761595), (15, 5409276), (18, 4507730), (20, 4056957), (30, 2704638), (36, 2253865), (45, 1803092), (60, 1352319), (83, 977580), (90, 901546), (166, 488790), (180, 450773), (249, 325860), (332, 244395), (415, 195516), (498, 162930), (747, 108620), (830, 97758), (996, 81465), (1245, 65172), (1494, 54310), (1660, 48879), (2490, 32586), (2988, 27155), (3735, 21724), (4980, 16293), (5431, 14940), (7470, 10862)]