71977360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9887}}^1$

素因数の和:9920

約数の個数: 80

約数和(自身を含む): 205986816

約数和(自身を除く): 134009456

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 9887, 19774, 39548, 49435, 69209, 79096, 98870, 128531, 138418, 158192, 197740, 257062, 276836, 346045, 395480, 514124, 553672, 642655, 692090, 790960, 899717, 1028248, 1107344, 1285310, 1384180, 1799434, 2056496, 2570620, 2768360, 3598868, 4498585, 5141240, 5536720, 7197736, 8997170, 10282480, 14395472, 17994340, 35988680, 71977360]

約数ペア:

[(1, 71977360), (2, 35988680), (4, 17994340), (5, 14395472), (7, 10282480), (8, 8997170), (10, 7197736), (13, 5536720), (14, 5141240), (16, 4498585), (20, 3598868), (26, 2768360), (28, 2570620), (35, 2056496), (40, 1799434), (52, 1384180), (56, 1285310), (65, 1107344), (70, 1028248), (80, 899717), (91, 790960), (104, 692090), (112, 642655), (130, 553672), (140, 514124), (182, 395480), (208, 346045), (260, 276836), (280, 257062), (364, 197740), (455, 158192), (520, 138418), (560, 128531), (728, 98870), (910, 79096), (1040, 69209), (1456, 49435), (1820, 39548), (3640, 19774), (7280, 9887)]