211917720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{252283}}^1$

素因数の和:252304

約数の個数: 64

約数和(自身を含む): 726577920

約数和(自身を除く): 514660200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 252283, 504566, 756849, 1009132, 1261415, 1513698, 1765981, 2018264, 2522830, 3027396, 3531962, 3784245, 5045660, 5297943, 6054792, 7063924, 7568490, 8829905, 10091320, 10595886, 14127848, 15136980, 17659810, 21191772, 26489715, 30273960, 35319620, 42383544, 52979430, 70639240, 105958860, 211917720]

約数ペア:

[(1, 211917720), (2, 105958860), (3, 70639240), (4, 52979430), (5, 42383544), (6, 35319620), (7, 30273960), (8, 26489715), (10, 21191772), (12, 17659810), (14, 15136980), (15, 14127848), (20, 10595886), (21, 10091320), (24, 8829905), (28, 7568490), (30, 7063924), (35, 6054792), (40, 5297943), (42, 5045660), (56, 3784245), (60, 3531962), (70, 3027396), (84, 2522830), (105, 2018264), (120, 1765981), (140, 1513698), (168, 1261415), (210, 1009132), (280, 756849), (420, 504566), (840, 252283)]