19835760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11807}}^1$

素因数の和:11830

約数の個数: 80

約数和(自身を含む): 70281216

約数和(自身を除く): 50445456

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 11807, 23614, 35421, 47228, 59035, 70842, 82649, 94456, 118070, 141684, 165298, 177105, 188912, 236140, 247947, 283368, 330596, 354210, 413245, 472280, 495894, 566736, 661192, 708420, 826490, 944560, 991788, 1239735, 1322384, 1416840, 1652980, 1983576, 2479470, 2833680, 3305960, 3967152, 4958940, 6611920, 9917880, 19835760]

約数ペア:

[(1, 19835760), (2, 9917880), (3, 6611920), (4, 4958940), (5, 3967152), (6, 3305960), (7, 2833680), (8, 2479470), (10, 1983576), (12, 1652980), (14, 1416840), (15, 1322384), (16, 1239735), (20, 991788), (21, 944560), (24, 826490), (28, 708420), (30, 661192), (35, 566736), (40, 495894), (42, 472280), (48, 413245), (56, 354210), (60, 330596), (70, 283368), (80, 247947), (84, 236140), (105, 188912), (112, 177105), (120, 165298), (140, 141684), (168, 118070), (210, 94456), (240, 82649), (280, 70842), (336, 59035), (420, 47228), (560, 35421), (840, 23614), (1680, 11807)]