981604.00000000

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:352

約数の個数: 144

約数和(自身を含む): 275184000

約数和(自身を除く): 190090980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 139, 171, 179, 180, 190, 228, 278, 285, 342, 358, 380, 417, 537, 556, 570, 684, 695, 716, 834, 855, 895, 1074, 1140, 1251, 1390, 1611, 1668, 1710, 1790, 2085, 2148, 2502, 2641, 2685, 2780, 3222, 3401, 3420, 3580, 4170, 5004, 5282, 5370, 6255, 6444, 6802, 7923, 8055, 8340, 10203, 10564, 10740, 12510, 13205, 13604, 15846, 16110, 17005, 20406, 23769, 24881, 25020, 26410, 30609, 31692, 32220, 34010, 39615, 40812, 47538, 49762, 51015, 52820, 61218, 68020, 74643, 79230, 95076, 99524, 102030, 118845, 122436, 124405, 149286, 153045, 158460, 204060, 223929, 237690, 248810, 298572, 306090, 373215, 447858, 472739, 475380, 497620, 612180, 746430, 895716, 945478, 1119645, 1418217, 1492860, 1890956, 2239290, 2363695, 2836434, 4254651, 4478580, 4727390, 5672868, 7091085, 8509302, 9454780, 14182170, 17018604, 21273255, 28364340, 42546510, 85093020]

約数ペア:

[(1, 85093020), (2, 42546510), (3, 28364340), (4, 21273255), (5, 17018604), (6, 14182170), (9, 9454780), (10, 8509302), (12, 7091085), (15, 5672868), (18, 4727390), (19, 4478580), (20, 4254651), (30, 2836434), (36, 2363695), (38, 2239290), (45, 1890956), (57, 1492860), (60, 1418217), (76, 1119645), (90, 945478), (95, 895716), (114, 746430), (139, 612180), (171, 497620), (179, 475380), (180, 472739), (190, 447858), (228, 373215), (278, 306090), (285, 298572), (342, 248810), (358, 237690), (380, 223929), (417, 204060), (537, 158460), (556, 153045), (570, 149286), (684, 124405), (695, 122436), (716, 118845), (834, 102030), (855, 99524), (895, 95076), (1074, 79230), (1140, 74643), (1251, 68020), (1390, 61218), (1611, 52820), (1668, 51015), (1710, 49762), (1790, 47538), (2085, 40812), (2148, 39615), (2502, 34010), (2641, 32220), (2685, 31692), (2780, 30609), (3222, 26410), (3401, 25020), (3420, 24881), (3580, 23769), (4170, 20406), (5004, 17005), (5282, 16110), (5370, 15846), (6255, 13604), (6444, 13205), (6802, 12510), (7923, 10740), (8055, 10564), (8340, 10203)]