66506720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{499}}^1$

素因数の和:545

約数の個数: 144

約数和(自身を含む): 193914000

約数和(自身を除く): 127407280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 160, 170, 196, 224, 238, 245, 272, 280, 340, 392, 476, 490, 499, 544, 560, 595, 680, 784, 833, 952, 980, 998, 1120, 1190, 1360, 1568, 1666, 1904, 1960, 1996, 2380, 2495, 2720, 3332, 3493, 3808, 3920, 3992, 4165, 4760, 4990, 6664, 6986, 7840, 7984, 8330, 8483, 9520, 9980, 13328, 13972, 15968, 16660, 16966, 17465, 19040, 19960, 24451, 26656, 27944, 33320, 33932, 34930, 39920, 42415, 48902, 55888, 59381, 66640, 67864, 69860, 79840, 84830, 97804, 111776, 118762, 122255, 133280, 135728, 139720, 169660, 195608, 237524, 244510, 271456, 279440, 296905, 339320, 391216, 415667, 475048, 489020, 558880, 593810, 678640, 782432, 831334, 950096, 978040, 1187620, 1357280, 1662668, 1900192, 1956080, 2078335, 2375240, 3325336, 3912160, 4156670, 4750480, 6650672, 8313340, 9500960, 13301344, 16626680, 33253360, 66506720]

約数ペア:

[(1, 66506720), (2, 33253360), (4, 16626680), (5, 13301344), (7, 9500960), (8, 8313340), (10, 6650672), (14, 4750480), (16, 4156670), (17, 3912160), (20, 3325336), (28, 2375240), (32, 2078335), (34, 1956080), (35, 1900192), (40, 1662668), (49, 1357280), (56, 1187620), (68, 978040), (70, 950096), (80, 831334), (85, 782432), (98, 678640), (112, 593810), (119, 558880), (136, 489020), (140, 475048), (160, 415667), (170, 391216), (196, 339320), (224, 296905), (238, 279440), (245, 271456), (272, 244510), (280, 237524), (340, 195608), (392, 169660), (476, 139720), (490, 135728), (499, 133280), (544, 122255), (560, 118762), (595, 111776), (680, 97804), (784, 84830), (833, 79840), (952, 69860), (980, 67864), (998, 66640), (1120, 59381), (1190, 55888), (1360, 48902), (1568, 42415), (1666, 39920), (1904, 34930), (1960, 33932), (1996, 33320), (2380, 27944), (2495, 26656), (2720, 24451), (3332, 19960), (3493, 19040), (3808, 17465), (3920, 16966), (3992, 16660), (4165, 15968), (4760, 13972), (4990, 13328), (6664, 9980), (6986, 9520), (7840, 8483), (7984, 8330)]