18748260

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:255

約数の個数: 120

約数和(自身を含む): 60008256

約数和(自身を除く): 41259996

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 71, 81, 90, 108, 135, 142, 162, 163, 180, 213, 270, 284, 324, 326, 355, 405, 426, 489, 540, 639, 652, 710, 810, 815, 852, 978, 1065, 1278, 1420, 1467, 1620, 1630, 1917, 1956, 2130, 2445, 2556, 2934, 3195, 3260, 3834, 4260, 4401, 4890, 5751, 5868, 6390, 7335, 7668, 8802, 9585, 9780, 11502, 11573, 12780, 13203, 14670, 17604, 19170, 22005, 23004, 23146, 26406, 28755, 29340, 34719, 38340, 44010, 46292, 52812, 57510, 57865, 66015, 69438, 88020, 104157, 115020, 115730, 132030, 138876, 173595, 208314, 231460, 264060, 312471, 347190, 416628, 520785, 624942, 694380, 937413, 1041570, 1249884, 1562355, 1874826, 2083140, 3124710, 3749652, 4687065, 6249420, 9374130, 18748260]

約数ペア:

[(1, 18748260), (2, 9374130), (3, 6249420), (4, 4687065), (5, 3749652), (6, 3124710), (9, 2083140), (10, 1874826), (12, 1562355), (15, 1249884), (18, 1041570), (20, 937413), (27, 694380), (30, 624942), (36, 520785), (45, 416628), (54, 347190), (60, 312471), (71, 264060), (81, 231460), (90, 208314), (108, 173595), (135, 138876), (142, 132030), (162, 115730), (163, 115020), (180, 104157), (213, 88020), (270, 69438), (284, 66015), (324, 57865), (326, 57510), (355, 52812), (405, 46292), (426, 44010), (489, 38340), (540, 34719), (639, 29340), (652, 28755), (710, 26406), (810, 23146), (815, 23004), (852, 22005), (978, 19170), (1065, 17604), (1278, 14670), (1420, 13203), (1467, 12780), (1620, 11573), (1630, 11502), (1917, 9780), (1956, 9585), (2130, 8802), (2445, 7668), (2556, 7335), (2934, 6390), (3195, 5868), (3260, 5751), (3834, 4890), (4260, 4401)]