19487300

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:166

約数の個数: 108

約数和(自身を含む): 50910804

約数和(自身を除く): 31423504

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 49, 50, 70, 82, 97, 98, 100, 140, 164, 175, 194, 196, 205, 245, 287, 350, 388, 410, 485, 490, 574, 679, 700, 820, 970, 980, 1025, 1148, 1225, 1358, 1435, 1940, 2009, 2050, 2425, 2450, 2716, 2870, 3395, 3977, 4018, 4100, 4753, 4850, 4900, 5740, 6790, 7175, 7954, 8036, 9506, 9700, 10045, 13580, 14350, 15908, 16975, 19012, 19885, 20090, 23765, 27839, 28700, 33950, 39770, 40180, 47530, 50225, 55678, 67900, 79540, 95060, 99425, 100450, 111356, 118825, 139195, 194873, 198850, 200900, 237650, 278390, 389746, 397700, 475300, 556780, 695975, 779492, 974365, 1391950, 1948730, 2783900, 3897460, 4871825, 9743650, 19487300]

約数ペア:

[(1, 19487300), (2, 9743650), (4, 4871825), (5, 3897460), (7, 2783900), (10, 1948730), (14, 1391950), (20, 974365), (25, 779492), (28, 695975), (35, 556780), (41, 475300), (49, 397700), (50, 389746), (70, 278390), (82, 237650), (97, 200900), (98, 198850), (100, 194873), (140, 139195), (164, 118825), (175, 111356), (194, 100450), (196, 99425), (205, 95060), (245, 79540), (287, 67900), (350, 55678), (388, 50225), (410, 47530), (485, 40180), (490, 39770), (574, 33950), (679, 28700), (700, 27839), (820, 23765), (970, 20090), (980, 19885), (1025, 19012), (1148, 16975), (1225, 15908), (1358, 14350), (1435, 13580), (1940, 10045), (2009, 9700), (2050, 9506), (2425, 8036), (2450, 7954), (2716, 7175), (2870, 6790), (3395, 5740), (3977, 4900), (4018, 4850), (4100, 4753)]