17980290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^2$

素因数の和:208

約数の個数: 72

約数和(自身を含む): 48950460

約数和(自身を除く): 30970170

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 83, 87, 90, 145, 166, 174, 249, 261, 290, 415, 435, 498, 522, 747, 830, 870, 1245, 1305, 1494, 2407, 2490, 2610, 3735, 4814, 6889, 7221, 7470, 12035, 13778, 14442, 20667, 21663, 24070, 34445, 36105, 41334, 43326, 62001, 68890, 72210, 103335, 108315, 124002, 199781, 206670, 216630, 310005, 399562, 599343, 620010, 998905, 1198686, 1798029, 1997810, 2996715, 3596058, 5993430, 8990145, 17980290]

約数ペア:

[(1, 17980290), (2, 8990145), (3, 5993430), (5, 3596058), (6, 2996715), (9, 1997810), (10, 1798029), (15, 1198686), (18, 998905), (29, 620010), (30, 599343), (45, 399562), (58, 310005), (83, 216630), (87, 206670), (90, 199781), (145, 124002), (166, 108315), (174, 103335), (249, 72210), (261, 68890), (290, 62001), (415, 43326), (435, 41334), (498, 36105), (522, 34445), (747, 24070), (830, 21663), (870, 20667), (1245, 14442), (1305, 13778), (1494, 12035), (2407, 7470), (2490, 7221), (2610, 6889), (3735, 4814)]