72182720

素因数分解:

$2^6\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1181}}^1$

素因数の和:1389

約数の個数: 56

約数和(自身を含む): 172931328

約数和(自身を除く): 100748608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 191, 320, 382, 764, 955, 1181, 1528, 1910, 2362, 3056, 3820, 4724, 5905, 6112, 7640, 9448, 11810, 12224, 15280, 18896, 23620, 30560, 37792, 47240, 61120, 75584, 94480, 188960, 225571, 377920, 451142, 902284, 1127855, 1804568, 2255710, 3609136, 4511420, 7218272, 9022840, 14436544, 18045680, 36091360, 72182720]

約数ペア:

[(1, 72182720), (2, 36091360), (4, 18045680), (5, 14436544), (8, 9022840), (10, 7218272), (16, 4511420), (20, 3609136), (32, 2255710), (40, 1804568), (64, 1127855), (80, 902284), (160, 451142), (191, 377920), (320, 225571), (382, 188960), (764, 94480), (955, 75584), (1181, 61120), (1528, 47240), (1910, 37792), (2362, 30560), (3056, 23620), (3820, 18896), (4724, 15280), (5905, 12224), (6112, 11810), (7640, 9448)]