215258480

素因数分解:

$2^4\times 5^1\times {\mathrm{769}}^1\times {\mathrm{3499}}^1$

素因数の和:4281

約数の個数: 40

約数和(自身を含む): 501270000

約数和(自身を除く): 286011520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 769, 1538, 3076, 3499, 3845, 6152, 6998, 7690, 12304, 13996, 15380, 17495, 27992, 30760, 34990, 55984, 61520, 69980, 139960, 279920, 2690731, 5381462, 10762924, 13453655, 21525848, 26907310, 43051696, 53814620, 107629240, 215258480]

約数ペア:

[(1, 215258480), (2, 107629240), (4, 53814620), (5, 43051696), (8, 26907310), (10, 21525848), (16, 13453655), (20, 10762924), (40, 5381462), (80, 2690731), (769, 279920), (1538, 139960), (3076, 69980), (3499, 61520), (3845, 55984), (6152, 34990), (6998, 30760), (7690, 27992), (12304, 17495), (13996, 15380)]