20985353190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1\times {\mathrm{8297}}^1$

素因数の和:8646

約数の個数: 96

約数和(自身を含む): 55222858080

約数和(自身を除く): 34237504890

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 157, 179, 314, 358, 471, 537, 785, 895, 942, 1074, 1413, 1570, 1611, 1790, 2355, 2685, 2826, 3222, 4710, 5370, 7065, 8055, 8297, 14130, 16110, 16594, 24891, 28103, 41485, 49782, 56206, 74673, 82970, 84309, 124455, 140515, 149346, 168618, 248910, 252927, 281030, 373365, 421545, 505854, 746730, 843090, 1264635, 1302629, 1485163, 2529270, 2605258, 2970326, 3907887, 4455489, 6513145, 7425815, 7815774, 8910978, 11723661, 13026290, 13366467, 14851630, 19539435, 22277445, 23447322, 26732934, 39078870, 44554890, 58618305, 66832335, 117236610, 133664670, 233170591, 466341182, 699511773, 1165852955, 1399023546, 2098535319, 2331705910, 3497558865, 4197070638, 6995117730, 10492676595, 20985353190]

約数ペア:

[(1, 20985353190), (2, 10492676595), (3, 6995117730), (5, 4197070638), (6, 3497558865), (9, 2331705910), (10, 2098535319), (15, 1399023546), (18, 1165852955), (30, 699511773), (45, 466341182), (90, 233170591), (157, 133664670), (179, 117236610), (314, 66832335), (358, 58618305), (471, 44554890), (537, 39078870), (785, 26732934), (895, 23447322), (942, 22277445), (1074, 19539435), (1413, 14851630), (1570, 13366467), (1611, 13026290), (1790, 11723661), (2355, 8910978), (2685, 7815774), (2826, 7425815), (3222, 6513145), (4710, 4455489), (5370, 3907887), (7065, 2970326), (8055, 2605258), (8297, 2529270), (14130, 1485163), (16110, 1302629), (16594, 1264635), (24891, 843090), (28103, 746730), (41485, 505854), (49782, 421545), (56206, 373365), (74673, 281030), (82970, 252927), (84309, 248910), (124455, 168618), (140515, 149346)]