1388365020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{157411}}^1$

素因数の和:157440

約数の個数: 108

約数和(自身を含む): 4898976264

約数和(自身を除く): 3510611244

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 157411, 314822, 472233, 629644, 787055, 944466, 1101877, 1416699, 1574110, 1888932, 2203754, 2361165, 2833398, 3148220, 3305631, 4407508, 4722330, 5509385, 5666796, 6611262, 7083495, 7713139, 9444660, 9916893, 11018770, 13222524, 14166990, 15426278, 16528155, 19833786, 22037540, 23139417, 28333980, 30852556, 33056310, 38565695, 39667572, 46278834, 49584465, 66112620, 69418251, 77131390, 92557668, 99168930, 115697085, 138836502, 154262780, 198337860, 231394170, 277673004, 347091255, 462788340, 694182510, 1388365020]

約数ペア:

[(1, 1388365020), (2, 694182510), (3, 462788340), (4, 347091255), (5, 277673004), (6, 231394170), (7, 198337860), (9, 154262780), (10, 138836502), (12, 115697085), (14, 99168930), (15, 92557668), (18, 77131390), (20, 69418251), (21, 66112620), (28, 49584465), (30, 46278834), (35, 39667572), (36, 38565695), (42, 33056310), (45, 30852556), (49, 28333980), (60, 23139417), (63, 22037540), (70, 19833786), (84, 16528155), (90, 15426278), (98, 14166990), (105, 13222524), (126, 11018770), (140, 9916893), (147, 9444660), (180, 7713139), (196, 7083495), (210, 6611262), (245, 5666796), (252, 5509385), (294, 4722330), (315, 4407508), (420, 3305631), (441, 3148220), (490, 2833398), (588, 2361165), (630, 2203754), (735, 1888932), (882, 1574110), (980, 1416699), (1260, 1101877), (1470, 944466), (1764, 787055), (2205, 629644), (2940, 472233), (4410, 314822), (8820, 157411)]