201556980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{18979}}^1$

素因数の和:19053

約数の個数: 72

約数和(自身を含む): 621784800

約数和(自身を除く): 420227820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 118, 177, 180, 236, 295, 354, 531, 590, 708, 885, 1062, 1180, 1770, 2124, 2655, 3540, 5310, 10620, 18979, 37958, 56937, 75916, 94895, 113874, 170811, 189790, 227748, 284685, 341622, 379580, 569370, 683244, 854055, 1119761, 1138740, 1708110, 2239522, 3359283, 3416220, 4479044, 5598805, 6718566, 10077849, 11197610, 13437132, 16796415, 20155698, 22395220, 33592830, 40311396, 50389245, 67185660, 100778490, 201556980]

約数ペア:

[(1, 201556980), (2, 100778490), (3, 67185660), (4, 50389245), (5, 40311396), (6, 33592830), (9, 22395220), (10, 20155698), (12, 16796415), (15, 13437132), (18, 11197610), (20, 10077849), (30, 6718566), (36, 5598805), (45, 4479044), (59, 3416220), (60, 3359283), (90, 2239522), (118, 1708110), (177, 1138740), (180, 1119761), (236, 854055), (295, 683244), (354, 569370), (531, 379580), (590, 341622), (708, 284685), (885, 227748), (1062, 189790), (1180, 170811), (1770, 113874), (2124, 94895), (2655, 75916), (3540, 56937), (5310, 37958), (10620, 18979)]