287259720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{809}}^1$

素因数の和:1103

約数の個数: 128

約数和(自身を含む): 944784000

約数和(自身を除く): 657524280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 269, 330, 440, 538, 660, 807, 809, 1076, 1320, 1345, 1614, 1618, 2152, 2427, 2690, 2959, 3228, 3236, 4035, 4045, 4854, 5380, 5918, 6456, 6472, 8070, 8090, 8877, 8899, 9708, 10760, 11836, 12135, 14795, 16140, 16180, 17754, 17798, 19416, 23672, 24270, 26697, 29590, 32280, 32360, 35508, 35596, 44385, 44495, 48540, 53394, 59180, 71016, 71192, 88770, 88990, 97080, 106788, 118360, 133485, 177540, 177980, 213576, 217621, 266970, 355080, 355960, 435242, 533940, 652863, 870484, 1067880, 1088105, 1305726, 1740968, 2176210, 2393831, 2611452, 3264315, 4352420, 4787662, 5222904, 6528630, 7181493, 8704840, 9575324, 11969155, 13057260, 14362986, 19150648, 23938310, 26114520, 28725972, 35907465, 47876620, 57451944, 71814930, 95753240, 143629860, 287259720]

約数ペア:

[(1, 287259720), (2, 143629860), (3, 95753240), (4, 71814930), (5, 57451944), (6, 47876620), (8, 35907465), (10, 28725972), (11, 26114520), (12, 23938310), (15, 19150648), (20, 14362986), (22, 13057260), (24, 11969155), (30, 9575324), (33, 8704840), (40, 7181493), (44, 6528630), (55, 5222904), (60, 4787662), (66, 4352420), (88, 3264315), (110, 2611452), (120, 2393831), (132, 2176210), (165, 1740968), (220, 1305726), (264, 1088105), (269, 1067880), (330, 870484), (440, 652863), (538, 533940), (660, 435242), (807, 355960), (809, 355080), (1076, 266970), (1320, 217621), (1345, 213576), (1614, 177980), (1618, 177540), (2152, 133485), (2427, 118360), (2690, 106788), (2959, 97080), (3228, 88990), (3236, 88770), (4035, 71192), (4045, 71016), (4854, 59180), (5380, 53394), (5918, 48540), (6456, 44495), (6472, 44385), (8070, 35596), (8090, 35508), (8877, 32360), (8899, 32280), (9708, 29590), (10760, 26697), (11836, 24270), (12135, 23672), (14795, 19416), (16140, 17798), (16180, 17754)]