28425780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1999}}^1$

素因数の和:2093

約数の個数: 72

約数和(自身を含む): 87360000

約数和(自身を除く): 58934220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1422, 1580, 1999, 2370, 2844, 3555, 3998, 4740, 5997, 7110, 7996, 9995, 11994, 14220, 17991, 19990, 23988, 29985, 35982, 39980, 59970, 71964, 89955, 119940, 157921, 179910, 315842, 359820, 473763, 631684, 789605, 947526, 1421289, 1579210, 1895052, 2368815, 2842578, 3158420, 4737630, 5685156, 7106445, 9475260, 14212890, 28425780]

約数ペア:

[(1, 28425780), (2, 14212890), (3, 9475260), (4, 7106445), (5, 5685156), (6, 4737630), (9, 3158420), (10, 2842578), (12, 2368815), (15, 1895052), (18, 1579210), (20, 1421289), (30, 947526), (36, 789605), (45, 631684), (60, 473763), (79, 359820), (90, 315842), (158, 179910), (180, 157921), (237, 119940), (316, 89955), (395, 71964), (474, 59970), (711, 39980), (790, 35982), (948, 29985), (1185, 23988), (1422, 19990), (1580, 17991), (1999, 14220), (2370, 11994), (2844, 9995), (3555, 7996), (3998, 7110), (4740, 5997)]