12567320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 29635200

約数和(自身を除く): 17067880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 79, 82, 97, 158, 164, 194, 205, 316, 328, 388, 395, 410, 485, 632, 776, 790, 820, 970, 1580, 1640, 1940, 3160, 3239, 3880, 3977, 6478, 7663, 7954, 12956, 15326, 15908, 16195, 19885, 25912, 30652, 31816, 32390, 38315, 39770, 61304, 64780, 76630, 79540, 129560, 153260, 159080, 306520, 314183, 628366, 1256732, 1570915, 2513464, 3141830, 6283660, 12567320]

約数ペア:

[(1, 12567320), (2, 6283660), (4, 3141830), (5, 2513464), (8, 1570915), (10, 1256732), (20, 628366), (40, 314183), (41, 306520), (79, 159080), (82, 153260), (97, 129560), (158, 79540), (164, 76630), (194, 64780), (205, 61304), (316, 39770), (328, 38315), (388, 32390), (395, 31816), (410, 30652), (485, 25912), (632, 19885), (776, 16195), (790, 15908), (820, 15326), (970, 12956), (1580, 7954), (1640, 7663), (1940, 6478), (3160, 3977), (3239, 3880)]