18783660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6389}}^1$

素因数の和:6415

約数の個数: 72

約数和(自身を含む): 61190640

約数和(自身を除く): 42406980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6389, 12778, 19167, 25556, 31945, 38334, 44723, 63890, 76668, 89446, 95835, 127780, 134169, 178892, 191670, 223615, 268338, 313061, 383340, 447230, 536676, 626122, 670845, 894460, 939183, 1252244, 1341690, 1565305, 1878366, 2683380, 3130610, 3756732, 4695915, 6261220, 9391830, 18783660]

約数ペア:

[(1, 18783660), (2, 9391830), (3, 6261220), (4, 4695915), (5, 3756732), (6, 3130610), (7, 2683380), (10, 1878366), (12, 1565305), (14, 1341690), (15, 1252244), (20, 939183), (21, 894460), (28, 670845), (30, 626122), (35, 536676), (42, 447230), (49, 383340), (60, 313061), (70, 268338), (84, 223615), (98, 191670), (105, 178892), (140, 134169), (147, 127780), (196, 95835), (210, 89446), (245, 76668), (294, 63890), (420, 44723), (490, 38334), (588, 31945), (735, 25556), (980, 19167), (1470, 12778), (2940, 6389)]