66821120

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:477

約数の個数: 88

約数和(自身を含む): 165856128

約数和(自身を除く): 99035008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 421, 496, 512, 620, 640, 842, 992, 1024, 1240, 1280, 1684, 1984, 2105, 2480, 2560, 3368, 3968, 4210, 4960, 5120, 6736, 7936, 8420, 9920, 13051, 13472, 15872, 16840, 19840, 26102, 26944, 31744, 33680, 39680, 52204, 53888, 65255, 67360, 79360, 104408, 107776, 130510, 134720, 158720, 208816, 215552, 261020, 269440, 417632, 431104, 522040, 538880, 835264, 1044080, 1077760, 1670528, 2088160, 2155520, 3341056, 4176320, 6682112, 8352640, 13364224, 16705280, 33410560, 66821120]

約数ペア:

[(1, 66821120), (2, 33410560), (4, 16705280), (5, 13364224), (8, 8352640), (10, 6682112), (16, 4176320), (20, 3341056), (31, 2155520), (32, 2088160), (40, 1670528), (62, 1077760), (64, 1044080), (80, 835264), (124, 538880), (128, 522040), (155, 431104), (160, 417632), (248, 269440), (256, 261020), (310, 215552), (320, 208816), (421, 158720), (496, 134720), (512, 130510), (620, 107776), (640, 104408), (842, 79360), (992, 67360), (1024, 65255), (1240, 53888), (1280, 52204), (1684, 39680), (1984, 33680), (2105, 31744), (2480, 26944), (2560, 26102), (3368, 19840), (3968, 16840), (4210, 15872), (4960, 13472), (5120, 13051), (6736, 9920), (7936, 8420)]