81213570

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4931}}^1$

素因数の和:5008

約数の個数: 64

約数和(自身を含む): 220164480

約数和(自身を除く): 138950910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 61, 90, 122, 135, 183, 270, 305, 366, 549, 610, 915, 1098, 1647, 1830, 2745, 3294, 4931, 5490, 8235, 9862, 14793, 16470, 24655, 29586, 44379, 49310, 73965, 88758, 133137, 147930, 221895, 266274, 300791, 443790, 601582, 665685, 902373, 1331370, 1503955, 1804746, 2707119, 3007910, 4511865, 5414238, 8121357, 9023730, 13535595, 16242714, 27071190, 40606785, 81213570]

約数ペア:

[(1, 81213570), (2, 40606785), (3, 27071190), (5, 16242714), (6, 13535595), (9, 9023730), (10, 8121357), (15, 5414238), (18, 4511865), (27, 3007910), (30, 2707119), (45, 1804746), (54, 1503955), (61, 1331370), (90, 902373), (122, 665685), (135, 601582), (183, 443790), (270, 300791), (305, 266274), (366, 221895), (549, 147930), (610, 133137), (915, 88758), (1098, 73965), (1647, 49310), (1830, 44379), (2745, 29586), (3294, 24655), (4931, 16470), (5490, 14793), (8235, 9862)]