8675780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 20630400

約数和(自身を除く): 11954620

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 79, 85, 95, 158, 170, 190, 289, 316, 323, 340, 380, 395, 578, 646, 790, 1156, 1292, 1343, 1445, 1501, 1580, 1615, 2686, 2890, 3002, 3230, 5372, 5491, 5780, 6004, 6460, 6715, 7505, 10982, 13430, 15010, 21964, 22831, 25517, 26860, 27455, 30020, 45662, 51034, 54910, 91324, 102068, 109820, 114155, 127585, 228310, 255170, 433789, 456620, 510340, 867578, 1735156, 2168945, 4337890, 8675780]

約数ペア:

[(1, 8675780), (2, 4337890), (4, 2168945), (5, 1735156), (10, 867578), (17, 510340), (19, 456620), (20, 433789), (34, 255170), (38, 228310), (68, 127585), (76, 114155), (79, 109820), (85, 102068), (95, 91324), (158, 54910), (170, 51034), (190, 45662), (289, 30020), (316, 27455), (323, 26860), (340, 25517), (380, 22831), (395, 21964), (578, 15010), (646, 13430), (790, 10982), (1156, 7505), (1292, 6715), (1343, 6460), (1445, 6004), (1501, 5780), (1580, 5491), (1615, 5372), (2686, 3230), (2890, 3002)]