18913020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{919}}^1$

素因数の和:952

約数の個数: 96

約数和(自身を含む): 61824000

約数和(自身を除く): 42910980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 343, 420, 490, 588, 686, 735, 919, 980, 1029, 1372, 1470, 1715, 1838, 2058, 2757, 2940, 3430, 3676, 4116, 4595, 5145, 5514, 6433, 6860, 9190, 10290, 11028, 12866, 13785, 18380, 19299, 20580, 25732, 27570, 32165, 38598, 45031, 55140, 64330, 77196, 90062, 96495, 128660, 135093, 180124, 192990, 225155, 270186, 315217, 385980, 450310, 540372, 630434, 675465, 900620, 945651, 1260868, 1350930, 1576085, 1891302, 2701860, 3152170, 3782604, 4728255, 6304340, 9456510, 18913020]

約数ペア:

[(1, 18913020), (2, 9456510), (3, 6304340), (4, 4728255), (5, 3782604), (6, 3152170), (7, 2701860), (10, 1891302), (12, 1576085), (14, 1350930), (15, 1260868), (20, 945651), (21, 900620), (28, 675465), (30, 630434), (35, 540372), (42, 450310), (49, 385980), (60, 315217), (70, 270186), (84, 225155), (98, 192990), (105, 180124), (140, 135093), (147, 128660), (196, 96495), (210, 90062), (245, 77196), (294, 64330), (343, 55140), (420, 45031), (490, 38598), (588, 32165), (686, 27570), (735, 25732), (919, 20580), (980, 19299), (1029, 18380), (1372, 13785), (1470, 12866), (1715, 11028), (1838, 10290), (2058, 9190), (2757, 6860), (2940, 6433), (3430, 5514), (3676, 5145), (4116, 4595)]