642589948

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{167}}^1$

素因数の和:264

約数の個数: 144

約数和(自身を含む): 1569480192

約数和(自身を除く): 926890244

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 31, 44, 52, 62, 77, 91, 124, 143, 154, 167, 182, 217, 286, 308, 334, 341, 364, 403, 434, 572, 668, 682, 806, 868, 961, 1001, 1169, 1364, 1612, 1837, 1922, 2002, 2171, 2338, 2387, 2821, 3674, 3844, 4004, 4342, 4433, 4676, 4774, 5177, 5642, 6727, 7348, 8684, 8866, 9548, 10354, 10571, 11284, 12493, 12859, 13454, 15197, 17732, 20708, 21142, 23881, 24986, 25718, 26908, 30394, 31031, 36239, 42284, 47762, 49972, 51436, 56947, 60788, 62062, 67301, 72478, 73997, 87451, 95524, 113894, 124124, 134602, 137423, 144956, 147994, 160487, 167167, 174902, 227788, 269204, 274846, 295988, 320974, 334334, 349804, 398629, 471107, 549692, 641948, 668668, 740311, 797258, 942214, 961961, 1123409, 1480622, 1594516, 1765357, 1884428, 1923922, 2086331, 2246818, 2961244, 3530714, 3847844, 4172662, 4493636, 5182177, 7061428, 8345324, 10364354, 12357499, 14604317, 20728708, 22949641, 24714998, 29208634, 45899282, 49429996, 58417268, 91798564, 160647487, 321294974, 642589948]

約数ペア:

[(1, 642589948), (2, 321294974), (4, 160647487), (7, 91798564), (11, 58417268), (13, 49429996), (14, 45899282), (22, 29208634), (26, 24714998), (28, 22949641), (31, 20728708), (44, 14604317), (52, 12357499), (62, 10364354), (77, 8345324), (91, 7061428), (124, 5182177), (143, 4493636), (154, 4172662), (167, 3847844), (182, 3530714), (217, 2961244), (286, 2246818), (308, 2086331), (334, 1923922), (341, 1884428), (364, 1765357), (403, 1594516), (434, 1480622), (572, 1123409), (668, 961961), (682, 942214), (806, 797258), (868, 740311), (961, 668668), (1001, 641948), (1169, 549692), (1364, 471107), (1612, 398629), (1837, 349804), (1922, 334334), (2002, 320974), (2171, 295988), (2338, 274846), (2387, 269204), (2821, 227788), (3674, 174902), (3844, 167167), (4004, 160487), (4342, 147994), (4433, 144956), (4676, 137423), (4774, 134602), (5177, 124124), (5642, 113894), (6727, 95524), (7348, 87451), (8684, 73997), (8866, 72478), (9548, 67301), (10354, 62062), (10571, 60788), (11284, 56947), (12493, 51436), (12859, 49972), (13454, 47762), (15197, 42284), (17732, 36239), (20708, 31031), (21142, 30394), (23881, 26908), (24986, 25718)]