178713520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{397}}^1$

素因数の和:758

約数の個数: 80

約数和(自身を含む): 442391328

約数和(自身を除く): 263677808

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 331, 340, 397, 662, 680, 794, 1324, 1360, 1588, 1655, 1985, 2648, 3176, 3310, 3970, 5296, 5627, 6352, 6620, 6749, 7940, 11254, 13240, 13498, 15880, 22508, 26480, 26996, 28135, 31760, 33745, 45016, 53992, 56270, 67490, 90032, 107984, 112540, 131407, 134980, 225080, 262814, 269960, 450160, 525628, 539920, 657035, 1051256, 1314070, 2102512, 2233919, 2628140, 4467838, 5256280, 8935676, 10512560, 11169595, 17871352, 22339190, 35742704, 44678380, 89356760, 178713520]

約数ペア:

[(1, 178713520), (2, 89356760), (4, 44678380), (5, 35742704), (8, 22339190), (10, 17871352), (16, 11169595), (17, 10512560), (20, 8935676), (34, 5256280), (40, 4467838), (68, 2628140), (80, 2233919), (85, 2102512), (136, 1314070), (170, 1051256), (272, 657035), (331, 539920), (340, 525628), (397, 450160), (662, 269960), (680, 262814), (794, 225080), (1324, 134980), (1360, 131407), (1588, 112540), (1655, 107984), (1985, 90032), (2648, 67490), (3176, 56270), (3310, 53992), (3970, 45016), (5296, 33745), (5627, 31760), (6352, 28135), (6620, 26996), (6749, 26480), (7940, 22508), (11254, 15880), (13240, 13498)]