198502480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{1181}}^1$

素因数の和:1396

約数の個数: 80

約数和(自身を含む): 506539008

約数和(自身を除く): 308036528

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 191, 220, 382, 440, 764, 880, 955, 1181, 1528, 1910, 2101, 2362, 3056, 3820, 4202, 4724, 5905, 7640, 8404, 9448, 10505, 11810, 12991, 15280, 16808, 18896, 21010, 23620, 25982, 33616, 42020, 47240, 51964, 64955, 84040, 94480, 103928, 129910, 168080, 207856, 225571, 259820, 451142, 519640, 902284, 1039280, 1127855, 1804568, 2255710, 2481281, 3609136, 4511420, 4962562, 9022840, 9925124, 12406405, 18045680, 19850248, 24812810, 39700496, 49625620, 99251240, 198502480]

約数ペア:

[(1, 198502480), (2, 99251240), (4, 49625620), (5, 39700496), (8, 24812810), (10, 19850248), (11, 18045680), (16, 12406405), (20, 9925124), (22, 9022840), (40, 4962562), (44, 4511420), (55, 3609136), (80, 2481281), (88, 2255710), (110, 1804568), (176, 1127855), (191, 1039280), (220, 902284), (382, 519640), (440, 451142), (764, 259820), (880, 225571), (955, 207856), (1181, 168080), (1528, 129910), (1910, 103928), (2101, 94480), (2362, 84040), (3056, 64955), (3820, 51964), (4202, 47240), (4724, 42020), (5905, 33616), (7640, 25982), (8404, 23620), (9448, 21010), (10505, 18896), (11810, 16808), (12991, 15280)]