261796140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{211}}^1$

素因数の和:400

約数の個数: 144

約数和(自身を含む): 818135136

約数和(自身を除く): 556338996

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 113, 122, 180, 183, 211, 226, 244, 305, 339, 366, 422, 452, 549, 565, 610, 633, 678, 732, 844, 915, 1017, 1055, 1098, 1130, 1220, 1266, 1356, 1695, 1830, 1899, 2034, 2110, 2196, 2260, 2532, 2745, 3165, 3390, 3660, 3798, 4068, 4220, 5085, 5490, 6330, 6780, 6893, 7596, 9495, 10170, 10980, 12660, 12871, 13786, 18990, 20340, 20679, 23843, 25742, 27572, 34465, 37980, 38613, 41358, 47686, 51484, 62037, 64355, 68930, 71529, 77226, 82716, 95372, 103395, 115839, 119215, 124074, 128710, 137860, 143058, 154452, 193065, 206790, 214587, 231678, 238430, 248148, 257420, 286116, 310185, 357645, 386130, 413580, 429174, 463356, 476860, 579195, 620370, 715290, 772260, 858348, 1072935, 1158390, 1240740, 1430580, 1454423, 2145870, 2316780, 2908846, 4291740, 4363269, 5817692, 7272115, 8726538, 13089807, 14544230, 17453076, 21816345, 26179614, 29088460, 43632690, 52359228, 65449035, 87265380, 130898070, 261796140]

約数ペア:

[(1, 261796140), (2, 130898070), (3, 87265380), (4, 65449035), (5, 52359228), (6, 43632690), (9, 29088460), (10, 26179614), (12, 21816345), (15, 17453076), (18, 14544230), (20, 13089807), (30, 8726538), (36, 7272115), (45, 5817692), (60, 4363269), (61, 4291740), (90, 2908846), (113, 2316780), (122, 2145870), (180, 1454423), (183, 1430580), (211, 1240740), (226, 1158390), (244, 1072935), (305, 858348), (339, 772260), (366, 715290), (422, 620370), (452, 579195), (549, 476860), (565, 463356), (610, 429174), (633, 413580), (678, 386130), (732, 357645), (844, 310185), (915, 286116), (1017, 257420), (1055, 248148), (1098, 238430), (1130, 231678), (1220, 214587), (1266, 206790), (1356, 193065), (1695, 154452), (1830, 143058), (1899, 137860), (2034, 128710), (2110, 124074), (2196, 119215), (2260, 115839), (2532, 103395), (2745, 95372), (3165, 82716), (3390, 77226), (3660, 71529), (3798, 68930), (4068, 64355), (4220, 62037), (5085, 51484), (5490, 47686), (6330, 41358), (6780, 38613), (6893, 37980), (7596, 34465), (9495, 27572), (10170, 25742), (10980, 23843), (12660, 20679), (12871, 20340), (13786, 18990)]