15899900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 37330944

約数和(自身を除く): 21431044

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 31, 46, 50, 62, 92, 100, 115, 124, 155, 223, 230, 310, 446, 460, 575, 620, 713, 775, 892, 1115, 1150, 1426, 1550, 2230, 2300, 2852, 3100, 3565, 4460, 5129, 5575, 6913, 7130, 10258, 11150, 13826, 14260, 17825, 20516, 22300, 25645, 27652, 34565, 35650, 51290, 69130, 71300, 102580, 128225, 138260, 158999, 172825, 256450, 317998, 345650, 512900, 635996, 691300, 794995, 1589990, 3179980, 3974975, 7949950, 15899900]

約数ペア:

[(1, 15899900), (2, 7949950), (4, 3974975), (5, 3179980), (10, 1589990), (20, 794995), (23, 691300), (25, 635996), (31, 512900), (46, 345650), (50, 317998), (62, 256450), (92, 172825), (100, 158999), (115, 138260), (124, 128225), (155, 102580), (223, 71300), (230, 69130), (310, 51290), (446, 35650), (460, 34565), (575, 27652), (620, 25645), (713, 22300), (775, 20516), (892, 17825), (1115, 14260), (1150, 13826), (1426, 11150), (1550, 10258), (2230, 7130), (2300, 6913), (2852, 5575), (3100, 5129), (3565, 4460)]