29907760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21991}}^1$

素因数の和:22021

約数の個数: 40

約数和(自身を含む): 73629216

約数和(自身を除く): 43721456

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 21991, 43982, 87964, 109955, 175928, 219910, 351856, 373847, 439820, 747694, 879640, 1495388, 1759280, 1869235, 2990776, 3738470, 5981552, 7476940, 14953880, 29907760]

約数ペア:

[(1, 29907760), (2, 14953880), (4, 7476940), (5, 5981552), (8, 3738470), (10, 2990776), (16, 1869235), (17, 1759280), (20, 1495388), (34, 879640), (40, 747694), (68, 439820), (80, 373847), (85, 351856), (136, 219910), (170, 175928), (272, 109955), (340, 87964), (680, 43982), (1360, 21991)]