20697210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:204

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 35912070

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 41, 45, 71, 79, 82, 90, 123, 142, 158, 205, 213, 237, 246, 355, 369, 395, 410, 426, 474, 615, 639, 710, 711, 738, 790, 1065, 1185, 1230, 1278, 1422, 1845, 2130, 2370, 2911, 3195, 3239, 3555, 3690, 5609, 5822, 6390, 6478, 7110, 8733, 9717, 11218, 14555, 16195, 16827, 17466, 19434, 26199, 28045, 29110, 29151, 32390, 33654, 43665, 48585, 50481, 52398, 56090, 58302, 84135, 87330, 97170, 100962, 130995, 145755, 168270, 229969, 252405, 261990, 291510, 459938, 504810, 689907, 1149845, 1379814, 2069721, 2299690, 3449535, 4139442, 6899070, 10348605, 20697210]

約数ペア:

[(1, 20697210), (2, 10348605), (3, 6899070), (5, 4139442), (6, 3449535), (9, 2299690), (10, 2069721), (15, 1379814), (18, 1149845), (30, 689907), (41, 504810), (45, 459938), (71, 291510), (79, 261990), (82, 252405), (90, 229969), (123, 168270), (142, 145755), (158, 130995), (205, 100962), (213, 97170), (237, 87330), (246, 84135), (355, 58302), (369, 56090), (395, 52398), (410, 50481), (426, 48585), (474, 43665), (615, 33654), (639, 32390), (710, 29151), (711, 29110), (738, 28045), (790, 26199), (1065, 19434), (1185, 17466), (1230, 16827), (1278, 16195), (1422, 14555), (1845, 11218), (2130, 9717), (2370, 8733), (2911, 7110), (3195, 6478), (3239, 6390), (3555, 5822), (3690, 5609)]