30725000

素因数分解:

$2^3\times 5^5\times {\mathrm{1229}}^1$

素因数の和:1260

約数の個数: 48

約数和(自身を含む): 72065700

約数和(自身を除く): 41340700

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1229, 1250, 2458, 2500, 3125, 4916, 5000, 6145, 6250, 9832, 12290, 12500, 24580, 25000, 30725, 49160, 61450, 122900, 153625, 245800, 307250, 614500, 768125, 1229000, 1536250, 3072500, 3840625, 6145000, 7681250, 15362500, 30725000]

約数ペア:

[(1, 30725000), (2, 15362500), (4, 7681250), (5, 6145000), (8, 3840625), (10, 3072500), (20, 1536250), (25, 1229000), (40, 768125), (50, 614500), (100, 307250), (125, 245800), (200, 153625), (250, 122900), (500, 61450), (625, 49160), (1000, 30725), (1229, 25000), (1250, 24580), (2458, 12500), (2500, 12290), (3125, 9832), (4916, 6250), (5000, 6145)]