257031360

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:516

約数の個数: 224

約数和(自身を含む): 921715200

約数和(自身を除く): 664683840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 71, 72, 80, 90, 96, 108, 120, 135, 142, 144, 160, 180, 192, 213, 216, 240, 270, 284, 288, 320, 355, 360, 419, 426, 432, 480, 540, 568, 576, 639, 710, 720, 838, 852, 864, 960, 1065, 1080, 1136, 1257, 1278, 1420, 1440, 1676, 1704, 1728, 1917, 2095, 2130, 2160, 2272, 2514, 2556, 2840, 2880, 3195, 3352, 3408, 3771, 3834, 4190, 4260, 4320, 4544, 5028, 5112, 5680, 6285, 6390, 6704, 6816, 7542, 7668, 8380, 8520, 8640, 9585, 10056, 10224, 11313, 11360, 12570, 12780, 13408, 13632, 15084, 15336, 16760, 17040, 18855, 19170, 20112, 20448, 22626, 22720, 25140, 25560, 26816, 29749, 30168, 30672, 33520, 34080, 37710, 38340, 40224, 40896, 45252, 50280, 51120, 56565, 59498, 60336, 61344, 67040, 68160, 75420, 76680, 80448, 89247, 90504, 100560, 102240, 113130, 118996, 120672, 122688, 134080, 148745, 150840, 153360, 178494, 181008, 201120, 204480, 226260, 237992, 241344, 267741, 297490, 301680, 306720, 356988, 362016, 402240, 446235, 452520, 475984, 535482, 594980, 603360, 613440, 713976, 724032, 803223, 892470, 905040, 951968, 1070964, 1189960, 1206720, 1338705, 1427952, 1606446, 1784940, 1810080, 1903936, 2141928, 2379920, 2677410, 2855904, 3212892, 3569880, 3620160, 4016115, 4283856, 4759840, 5354820, 5711808, 6425784, 7139760, 8032230, 8567712, 9519680, 10709640, 12851568, 14279520, 16064460, 17135424, 21419280, 25703136, 28559040, 32128920, 42838560, 51406272, 64257840, 85677120, 128515680, 257031360]

約数ペア:

[(1, 257031360), (2, 128515680), (3, 85677120), (4, 64257840), (5, 51406272), (6, 42838560), (8, 32128920), (9, 28559040), (10, 25703136), (12, 21419280), (15, 17135424), (16, 16064460), (18, 14279520), (20, 12851568), (24, 10709640), (27, 9519680), (30, 8567712), (32, 8032230), (36, 7139760), (40, 6425784), (45, 5711808), (48, 5354820), (54, 4759840), (60, 4283856), (64, 4016115), (71, 3620160), (72, 3569880), (80, 3212892), (90, 2855904), (96, 2677410), (108, 2379920), (120, 2141928), (135, 1903936), (142, 1810080), (144, 1784940), (160, 1606446), (180, 1427952), (192, 1338705), (213, 1206720), (216, 1189960), (240, 1070964), (270, 951968), (284, 905040), (288, 892470), (320, 803223), (355, 724032), (360, 713976), (419, 613440), (426, 603360), (432, 594980), (480, 535482), (540, 475984), (568, 452520), (576, 446235), (639, 402240), (710, 362016), (720, 356988), (838, 306720), (852, 301680), (864, 297490), (960, 267741), (1065, 241344), (1080, 237992), (1136, 226260), (1257, 204480), (1278, 201120), (1420, 181008), (1440, 178494), (1676, 153360), (1704, 150840), (1728, 148745), (1917, 134080), (2095, 122688), (2130, 120672), (2160, 118996), (2272, 113130), (2514, 102240), (2556, 100560), (2840, 90504), (2880, 89247), (3195, 80448), (3352, 76680), (3408, 75420), (3771, 68160), (3834, 67040), (4190, 61344), (4260, 60336), (4320, 59498), (4544, 56565), (5028, 51120), (5112, 50280), (5680, 45252), (6285, 40896), (6390, 40224), (6704, 38340), (6816, 37710), (7542, 34080), (7668, 33520), (8380, 30672), (8520, 30168), (8640, 29749), (9585, 26816), (10056, 25560), (10224, 25140), (11313, 22720), (11360, 22626), (12570, 20448), (12780, 20112), (13408, 19170), (13632, 18855), (15084, 17040), (15336, 16760)]