25444980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:278

約数の個数: 144

約数和(自身を含む): 85857408

約数和(自身を除く): 60412428

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 71, 90, 99, 110, 132, 142, 165, 180, 181, 198, 213, 220, 284, 330, 355, 362, 396, 426, 495, 543, 639, 660, 710, 724, 781, 852, 905, 990, 1065, 1086, 1278, 1420, 1562, 1629, 1810, 1980, 1991, 2130, 2172, 2343, 2556, 2715, 3124, 3195, 3258, 3620, 3905, 3982, 4260, 4686, 5430, 5973, 6390, 6516, 7029, 7810, 7964, 8145, 9372, 9955, 10860, 11715, 11946, 12780, 12851, 14058, 15620, 16290, 17919, 19910, 23430, 23892, 25702, 28116, 29865, 32580, 35145, 35838, 38553, 39820, 46860, 51404, 59730, 64255, 70290, 71676, 77106, 89595, 115659, 119460, 128510, 140580, 141361, 154212, 179190, 192765, 231318, 257020, 282722, 358380, 385530, 424083, 462636, 565444, 578295, 706805, 771060, 848166, 1156590, 1272249, 1413610, 1696332, 2120415, 2313180, 2544498, 2827220, 4240830, 5088996, 6361245, 8481660, 12722490, 25444980]

約数ペア:

[(1, 25444980), (2, 12722490), (3, 8481660), (4, 6361245), (5, 5088996), (6, 4240830), (9, 2827220), (10, 2544498), (11, 2313180), (12, 2120415), (15, 1696332), (18, 1413610), (20, 1272249), (22, 1156590), (30, 848166), (33, 771060), (36, 706805), (44, 578295), (45, 565444), (55, 462636), (60, 424083), (66, 385530), (71, 358380), (90, 282722), (99, 257020), (110, 231318), (132, 192765), (142, 179190), (165, 154212), (180, 141361), (181, 140580), (198, 128510), (213, 119460), (220, 115659), (284, 89595), (330, 77106), (355, 71676), (362, 70290), (396, 64255), (426, 59730), (495, 51404), (543, 46860), (639, 39820), (660, 38553), (710, 35838), (724, 35145), (781, 32580), (852, 29865), (905, 28116), (990, 25702), (1065, 23892), (1086, 23430), (1278, 19910), (1420, 17919), (1562, 16290), (1629, 15620), (1810, 14058), (1980, 12851), (1991, 12780), (2130, 11946), (2172, 11715), (2343, 10860), (2556, 9955), (2715, 9372), (3124, 8145), (3195, 7964), (3258, 7810), (3620, 7029), (3905, 6516), (3982, 6390), (4260, 5973), (4686, 5430)]