388922900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{1151}}^1$

素因数の和:1305

約数の個数: 72

約数和(自身を含む): 879943680

約数和(自身を除く): 491020780

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 109, 124, 155, 218, 310, 436, 545, 620, 775, 1090, 1151, 1550, 2180, 2302, 2725, 3100, 3379, 4604, 5450, 5755, 6758, 10900, 11510, 13516, 16895, 23020, 28775, 33790, 35681, 57550, 67580, 71362, 84475, 115100, 125459, 142724, 168950, 178405, 250918, 337900, 356810, 501836, 627295, 713620, 892025, 1254590, 1784050, 2509180, 3136475, 3568100, 3889229, 6272950, 7778458, 12545900, 15556916, 19446145, 38892290, 77784580, 97230725, 194461450, 388922900]

約数ペア:

[(1, 388922900), (2, 194461450), (4, 97230725), (5, 77784580), (10, 38892290), (20, 19446145), (25, 15556916), (31, 12545900), (50, 7778458), (62, 6272950), (100, 3889229), (109, 3568100), (124, 3136475), (155, 2509180), (218, 1784050), (310, 1254590), (436, 892025), (545, 713620), (620, 627295), (775, 501836), (1090, 356810), (1151, 337900), (1550, 250918), (2180, 178405), (2302, 168950), (2725, 142724), (3100, 125459), (3379, 115100), (4604, 84475), (5450, 71362), (5755, 67580), (6758, 57550), (10900, 35681), (11510, 33790), (13516, 28775), (16895, 23020)]