261023880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:312

約数の個数: 192

約数和(自身を含む): 865926720

約数和(自身を除く): 604902840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 61, 65, 78, 104, 120, 122, 130, 156, 169, 183, 195, 211, 244, 260, 305, 312, 338, 366, 390, 422, 488, 507, 520, 610, 633, 676, 732, 780, 793, 844, 845, 915, 1014, 1055, 1220, 1266, 1352, 1464, 1560, 1586, 1688, 1690, 1830, 2028, 2110, 2379, 2440, 2532, 2535, 2743, 3165, 3172, 3380, 3660, 3965, 4056, 4220, 4758, 5064, 5070, 5486, 6330, 6344, 6760, 7320, 7930, 8229, 8440, 9516, 10140, 10309, 10972, 11895, 12660, 12871, 13715, 15860, 16458, 19032, 20280, 20618, 21944, 23790, 25320, 25742, 27430, 30927, 31720, 32916, 35659, 38613, 41145, 41236, 47580, 51484, 51545, 54860, 61854, 64355, 65832, 71318, 77226, 82290, 82472, 95160, 102968, 103090, 106977, 109720, 123708, 128710, 142636, 154452, 154635, 164580, 167323, 178295, 193065, 206180, 213954, 247416, 257420, 285272, 308904, 309270, 329160, 334646, 356590, 386130, 412360, 427908, 501969, 514840, 534885, 618540, 669292, 713180, 772260, 836615, 855816, 1003938, 1069770, 1237080, 1338584, 1426360, 1544520, 1673230, 2007876, 2139540, 2175199, 2509845, 3346460, 4015752, 4279080, 4350398, 5019690, 6525597, 6692920, 8700796, 10039380, 10875995, 13051194, 17401592, 20078760, 21751990, 26102388, 32627985, 43503980, 52204776, 65255970, 87007960, 130511940, 261023880]

約数ペア:

[(1, 261023880), (2, 130511940), (3, 87007960), (4, 65255970), (5, 52204776), (6, 43503980), (8, 32627985), (10, 26102388), (12, 21751990), (13, 20078760), (15, 17401592), (20, 13051194), (24, 10875995), (26, 10039380), (30, 8700796), (39, 6692920), (40, 6525597), (52, 5019690), (60, 4350398), (61, 4279080), (65, 4015752), (78, 3346460), (104, 2509845), (120, 2175199), (122, 2139540), (130, 2007876), (156, 1673230), (169, 1544520), (183, 1426360), (195, 1338584), (211, 1237080), (244, 1069770), (260, 1003938), (305, 855816), (312, 836615), (338, 772260), (366, 713180), (390, 669292), (422, 618540), (488, 534885), (507, 514840), (520, 501969), (610, 427908), (633, 412360), (676, 386130), (732, 356590), (780, 334646), (793, 329160), (844, 309270), (845, 308904), (915, 285272), (1014, 257420), (1055, 247416), (1220, 213954), (1266, 206180), (1352, 193065), (1464, 178295), (1560, 167323), (1586, 164580), (1688, 154635), (1690, 154452), (1830, 142636), (2028, 128710), (2110, 123708), (2379, 109720), (2440, 106977), (2532, 103090), (2535, 102968), (2743, 95160), (3165, 82472), (3172, 82290), (3380, 77226), (3660, 71318), (3965, 65832), (4056, 64355), (4220, 61854), (4758, 54860), (5064, 51545), (5070, 51484), (5486, 47580), (6330, 41236), (6344, 41145), (6760, 38613), (7320, 35659), (7930, 32916), (8229, 31720), (8440, 30927), (9516, 27430), (10140, 25742), (10309, 25320), (10972, 23790), (11895, 21944), (12660, 20618), (12871, 20280), (13715, 19032), (15860, 16458)]