18491850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:169

約数の個数: 144

約数和(自身を含む): 55855800

約数和(自身を除く): 37363950

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 29, 30, 39, 45, 50, 58, 65, 75, 78, 87, 90, 109, 117, 130, 145, 150, 174, 195, 218, 225, 234, 261, 290, 325, 327, 377, 390, 435, 450, 522, 545, 585, 650, 654, 725, 754, 870, 975, 981, 1090, 1131, 1170, 1305, 1417, 1450, 1635, 1885, 1950, 1962, 2175, 2262, 2610, 2725, 2834, 2925, 3161, 3270, 3393, 3770, 4251, 4350, 4905, 5450, 5655, 5850, 6322, 6525, 6786, 7085, 8175, 8502, 9425, 9483, 9810, 11310, 12753, 13050, 14170, 15805, 16350, 16965, 18850, 18966, 21255, 24525, 25506, 28275, 28449, 31610, 33930, 35425, 41093, 42510, 47415, 49050, 56550, 56898, 63765, 70850, 79025, 82186, 84825, 94830, 106275, 123279, 127530, 142245, 158050, 169650, 205465, 212550, 237075, 246558, 284490, 318825, 369837, 410930, 474150, 616395, 637650, 711225, 739674, 1027325, 1232790, 1422450, 1849185, 2054650, 3081975, 3698370, 6163950, 9245925, 18491850]

約数ペア:

[(1, 18491850), (2, 9245925), (3, 6163950), (5, 3698370), (6, 3081975), (9, 2054650), (10, 1849185), (13, 1422450), (15, 1232790), (18, 1027325), (25, 739674), (26, 711225), (29, 637650), (30, 616395), (39, 474150), (45, 410930), (50, 369837), (58, 318825), (65, 284490), (75, 246558), (78, 237075), (87, 212550), (90, 205465), (109, 169650), (117, 158050), (130, 142245), (145, 127530), (150, 123279), (174, 106275), (195, 94830), (218, 84825), (225, 82186), (234, 79025), (261, 70850), (290, 63765), (325, 56898), (327, 56550), (377, 49050), (390, 47415), (435, 42510), (450, 41093), (522, 35425), (545, 33930), (585, 31610), (650, 28449), (654, 28275), (725, 25506), (754, 24525), (870, 21255), (975, 18966), (981, 18850), (1090, 16965), (1131, 16350), (1170, 15805), (1305, 14170), (1417, 13050), (1450, 12753), (1635, 11310), (1885, 9810), (1950, 9483), (1962, 9425), (2175, 8502), (2262, 8175), (2610, 7085), (2725, 6786), (2834, 6525), (2925, 6322), (3161, 5850), (3270, 5655), (3393, 5450), (3770, 4905), (4251, 4350)]