18550980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{14723}}^1$

素因数の和:14745

約数の個数: 72

約数和(自身を含む): 64314432

約数和(自身を除く): 45763452

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 14723, 29446, 44169, 58892, 73615, 88338, 103061, 132507, 147230, 176676, 206122, 220845, 265014, 294460, 309183, 412244, 441690, 515305, 530028, 618366, 662535, 883380, 927549, 1030610, 1236732, 1325070, 1545915, 1855098, 2061220, 2650140, 3091830, 3710196, 4637745, 6183660, 9275490, 18550980]

約数ペア:

[(1, 18550980), (2, 9275490), (3, 6183660), (4, 4637745), (5, 3710196), (6, 3091830), (7, 2650140), (9, 2061220), (10, 1855098), (12, 1545915), (14, 1325070), (15, 1236732), (18, 1030610), (20, 927549), (21, 883380), (28, 662535), (30, 618366), (35, 530028), (36, 515305), (42, 441690), (45, 412244), (60, 309183), (63, 294460), (70, 265014), (84, 220845), (90, 206122), (105, 176676), (126, 147230), (140, 132507), (180, 103061), (210, 88338), (252, 73615), (315, 58892), (420, 44169), (630, 29446), (1260, 14723)]