89979680

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{499}}^1$

素因数の和:551

約数の個数: 144

約数和(自身を含む): 258552000

約数和(自身を除く): 168572320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 160, 161, 184, 196, 224, 230, 245, 280, 322, 368, 392, 460, 490, 499, 560, 644, 736, 784, 805, 920, 980, 998, 1120, 1127, 1288, 1568, 1610, 1840, 1960, 1996, 2254, 2495, 2576, 3220, 3493, 3680, 3920, 3992, 4508, 4990, 5152, 5635, 6440, 6986, 7840, 7984, 9016, 9980, 11270, 11477, 12880, 13972, 15968, 17465, 18032, 19960, 22540, 22954, 24451, 25760, 27944, 34930, 36064, 39920, 45080, 45908, 48902, 55888, 57385, 69860, 79840, 80339, 90160, 91816, 97804, 111776, 114770, 122255, 139720, 160678, 180320, 183632, 195608, 229540, 244510, 279440, 321356, 367264, 391216, 401695, 459080, 489020, 558880, 562373, 642712, 782432, 803390, 918160, 978040, 1124746, 1285424, 1606780, 1836320, 1956080, 2249492, 2570848, 2811865, 3213560, 3912160, 4498984, 5623730, 6427120, 8997968, 11247460, 12854240, 17995936, 22494920, 44989840, 89979680]

約数ペア:

[(1, 89979680), (2, 44989840), (4, 22494920), (5, 17995936), (7, 12854240), (8, 11247460), (10, 8997968), (14, 6427120), (16, 5623730), (20, 4498984), (23, 3912160), (28, 3213560), (32, 2811865), (35, 2570848), (40, 2249492), (46, 1956080), (49, 1836320), (56, 1606780), (70, 1285424), (80, 1124746), (92, 978040), (98, 918160), (112, 803390), (115, 782432), (140, 642712), (160, 562373), (161, 558880), (184, 489020), (196, 459080), (224, 401695), (230, 391216), (245, 367264), (280, 321356), (322, 279440), (368, 244510), (392, 229540), (460, 195608), (490, 183632), (499, 180320), (560, 160678), (644, 139720), (736, 122255), (784, 114770), (805, 111776), (920, 97804), (980, 91816), (998, 90160), (1120, 80339), (1127, 79840), (1288, 69860), (1568, 57385), (1610, 55888), (1840, 48902), (1960, 45908), (1996, 45080), (2254, 39920), (2495, 36064), (2576, 34930), (3220, 27944), (3493, 25760), (3680, 24451), (3920, 22954), (3992, 22540), (4508, 19960), (4990, 18032), (5152, 17465), (5635, 15968), (6440, 13972), (6986, 12880), (7840, 11477), (7984, 11270), (9016, 9980)]