19830490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 40176000

約数和(自身を除く): 20345510

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 59, 61, 95, 118, 122, 145, 190, 290, 295, 305, 551, 590, 610, 1102, 1121, 1159, 1711, 1769, 2242, 2318, 2755, 3422, 3538, 3599, 5510, 5605, 5795, 7198, 8555, 8845, 11210, 11590, 17110, 17690, 17995, 32509, 33611, 35990, 65018, 67222, 68381, 104371, 136762, 162545, 168055, 208742, 325090, 336110, 341905, 521855, 683810, 1043710, 1983049, 3966098, 9915245, 19830490]

約数ペア:

[(1, 19830490), (2, 9915245), (5, 3966098), (10, 1983049), (19, 1043710), (29, 683810), (38, 521855), (58, 341905), (59, 336110), (61, 325090), (95, 208742), (118, 168055), (122, 162545), (145, 136762), (190, 104371), (290, 68381), (295, 67222), (305, 65018), (551, 35990), (590, 33611), (610, 32509), (1102, 17995), (1121, 17690), (1159, 17110), (1711, 11590), (1769, 11210), (2242, 8845), (2318, 8555), (2755, 7198), (3422, 5795), (3538, 5605), (3599, 5510)]