19999140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2801}}^1$

素因数の和:2837

約数の個数: 96

約数和(自身を含む): 67785984

約数和(自身を除く): 47786844

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 340, 357, 420, 476, 510, 595, 714, 1020, 1190, 1428, 1785, 2380, 2801, 3570, 5602, 7140, 8403, 11204, 14005, 16806, 19607, 28010, 33612, 39214, 42015, 47617, 56020, 58821, 78428, 84030, 95234, 98035, 117642, 142851, 168060, 190468, 196070, 235284, 238085, 285702, 294105, 333319, 392140, 476170, 571404, 588210, 666638, 714255, 952340, 999957, 1176420, 1333276, 1428510, 1666595, 1999914, 2857020, 3333190, 3999828, 4999785, 6666380, 9999570, 19999140]

約数ペア:

[(1, 19999140), (2, 9999570), (3, 6666380), (4, 4999785), (5, 3999828), (6, 3333190), (7, 2857020), (10, 1999914), (12, 1666595), (14, 1428510), (15, 1333276), (17, 1176420), (20, 999957), (21, 952340), (28, 714255), (30, 666638), (34, 588210), (35, 571404), (42, 476170), (51, 392140), (60, 333319), (68, 294105), (70, 285702), (84, 238085), (85, 235284), (102, 196070), (105, 190468), (119, 168060), (140, 142851), (170, 117642), (204, 98035), (210, 95234), (238, 84030), (255, 78428), (340, 58821), (357, 56020), (420, 47617), (476, 42015), (510, 39214), (595, 33612), (714, 28010), (1020, 19607), (1190, 16806), (1428, 14005), (1785, 11204), (2380, 8403), (2801, 7140), (3570, 5602)]