209966880

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:251

約数の個数: 192

約数和(自身を含む): 688455936

約数和(自身を除く): 478489056

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 71, 80, 96, 101, 120, 122, 142, 160, 183, 202, 213, 240, 244, 284, 303, 305, 355, 366, 404, 426, 480, 488, 505, 568, 606, 610, 710, 732, 808, 852, 915, 976, 1010, 1065, 1136, 1212, 1220, 1420, 1464, 1515, 1616, 1704, 1830, 1952, 2020, 2130, 2272, 2424, 2440, 2840, 2928, 3030, 3232, 3408, 3660, 4040, 4260, 4331, 4848, 4880, 5680, 5856, 6060, 6161, 6816, 7171, 7320, 8080, 8520, 8662, 9696, 9760, 11360, 12120, 12322, 12993, 14342, 14640, 16160, 17040, 17324, 18483, 21513, 21655, 24240, 24644, 25986, 28684, 29280, 30805, 34080, 34648, 35855, 36966, 43026, 43310, 48480, 49288, 51972, 57368, 61610, 64965, 69296, 71710, 73932, 86052, 86620, 92415, 98576, 103944, 107565, 114736, 123220, 129930, 138592, 143420, 147864, 172104, 173240, 184830, 197152, 207888, 215130, 229472, 246440, 259860, 286840, 295728, 344208, 346480, 369660, 415776, 430260, 437431, 492880, 519720, 573680, 591456, 688416, 692960, 739320, 860520, 874862, 985760, 1039440, 1147360, 1312293, 1478640, 1721040, 1749724, 2078880, 2187155, 2624586, 2957280, 3442080, 3499448, 4374310, 5249172, 6561465, 6998896, 8748620, 10498344, 13122930, 13997792, 17497240, 20996688, 26245860, 34994480, 41993376, 52491720, 69988960, 104983440, 209966880]

約数ペア:

[(1, 209966880), (2, 104983440), (3, 69988960), (4, 52491720), (5, 41993376), (6, 34994480), (8, 26245860), (10, 20996688), (12, 17497240), (15, 13997792), (16, 13122930), (20, 10498344), (24, 8748620), (30, 6998896), (32, 6561465), (40, 5249172), (48, 4374310), (60, 3499448), (61, 3442080), (71, 2957280), (80, 2624586), (96, 2187155), (101, 2078880), (120, 1749724), (122, 1721040), (142, 1478640), (160, 1312293), (183, 1147360), (202, 1039440), (213, 985760), (240, 874862), (244, 860520), (284, 739320), (303, 692960), (305, 688416), (355, 591456), (366, 573680), (404, 519720), (426, 492880), (480, 437431), (488, 430260), (505, 415776), (568, 369660), (606, 346480), (610, 344208), (710, 295728), (732, 286840), (808, 259860), (852, 246440), (915, 229472), (976, 215130), (1010, 207888), (1065, 197152), (1136, 184830), (1212, 173240), (1220, 172104), (1420, 147864), (1464, 143420), (1515, 138592), (1616, 129930), (1704, 123220), (1830, 114736), (1952, 107565), (2020, 103944), (2130, 98576), (2272, 92415), (2424, 86620), (2440, 86052), (2840, 73932), (2928, 71710), (3030, 69296), (3232, 64965), (3408, 61610), (3660, 57368), (4040, 51972), (4260, 49288), (4331, 48480), (4848, 43310), (4880, 43026), (5680, 36966), (5856, 35855), (6060, 34648), (6161, 34080), (6816, 30805), (7171, 29280), (7320, 28684), (8080, 25986), (8520, 24644), (8662, 24240), (9696, 21655), (9760, 21513), (11360, 18483), (12120, 17324), (12322, 17040), (12993, 16160), (14342, 14640)]