138817980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{15739}}^1$

素因数の和:15768

約数の個数: 108

約数和(自身を含む): 489860280

約数和(自身を除く): 351042300

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, 15739, 31478, 47217, 62956, 78695, 94434, 110173, 141651, 157390, 188868, 220346, 236085, 283302, 314780, 330519, 440692, 472170, 550865, 566604, 661038, 708255, 771211, 944340, 991557, 1101730, 1322076, 1416510, 1542422, 1652595, 1983114, 2203460, 2313633, 2833020, 3084844, 3305190, 3856055, 3966228, 4627266, 4957785, 6610380, 6940899, 7712110, 9254532, 9915570, 11568165, 13881798, 15424220, 19831140, 23136330, 27763596, 34704495, 46272660, 69408990, 138817980]

約数ペア:

[(1, 138817980), (2, 69408990), (3, 46272660), (4, 34704495), (5, 27763596), (6, 23136330), (7, 19831140), (9, 15424220), (10, 13881798), (12, 11568165), (14, 9915570), (15, 9254532), (18, 7712110), (20, 6940899), (21, 6610380), (28, 4957785), (30, 4627266), (35, 3966228), (36, 3856055), (42, 3305190), (45, 3084844), (49, 2833020), (60, 2313633), (63, 2203460), (70, 1983114), (84, 1652595), (90, 1542422), (98, 1416510), (105, 1322076), (126, 1101730), (140, 991557), (147, 944340), (180, 771211), (196, 708255), (210, 661038), (245, 566604), (252, 550865), (294, 472170), (315, 440692), (420, 330519), (441, 314780), (490, 283302), (588, 236085), (630, 220346), (735, 188868), (882, 157390), (980, 141651), (1260, 110173), (1470, 94434), (1764, 78695), (2205, 62956), (2940, 47217), (4410, 31478), (8820, 15739)]