81380760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{18329}}^1$

素因数の和:18380

約数の個数: 64

約数和(自身を含む): 250754400

約数和(自身を除く): 169373640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 555, 740, 888, 1110, 1480, 2220, 4440, 18329, 36658, 54987, 73316, 91645, 109974, 146632, 183290, 219948, 274935, 366580, 439896, 549870, 678173, 733160, 1099740, 1356346, 2034519, 2199480, 2712692, 3390865, 4069038, 5425384, 6781730, 8138076, 10172595, 13563460, 16276152, 20345190, 27126920, 40690380, 81380760]

約数ペア:

[(1, 81380760), (2, 40690380), (3, 27126920), (4, 20345190), (5, 16276152), (6, 13563460), (8, 10172595), (10, 8138076), (12, 6781730), (15, 5425384), (20, 4069038), (24, 3390865), (30, 2712692), (37, 2199480), (40, 2034519), (60, 1356346), (74, 1099740), (111, 733160), (120, 678173), (148, 549870), (185, 439896), (222, 366580), (296, 274935), (370, 219948), (444, 183290), (555, 146632), (740, 109974), (888, 91645), (1110, 73316), (1480, 54987), (2220, 36658), (4440, 18329)]