20819300

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{3413}}^1$

素因数の和:3488

約数の個数: 36

約数和(自身を含む): 45931956

約数和(自身を除く): 25112656

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 3413, 6100, 6826, 13652, 17065, 34130, 68260, 85325, 170650, 208193, 341300, 416386, 832772, 1040965, 2081930, 4163860, 5204825, 10409650, 20819300]

約数ペア:

[(1, 20819300), (2, 10409650), (4, 5204825), (5, 4163860), (10, 2081930), (20, 1040965), (25, 832772), (50, 416386), (61, 341300), (100, 208193), (122, 170650), (244, 85325), (305, 68260), (610, 34130), (1220, 17065), (1525, 13652), (3050, 6826), (3413, 6100)]