255690880

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:438

約数の個数: 128

約数和(自身を含む): 658316160

約数和(自身を除く): 402625280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 71, 80, 85, 128, 136, 142, 160, 170, 272, 284, 320, 331, 340, 355, 544, 568, 640, 662, 680, 710, 1088, 1136, 1207, 1324, 1360, 1420, 1655, 2176, 2272, 2414, 2648, 2720, 2840, 3310, 4544, 4828, 5296, 5440, 5627, 5680, 6035, 6620, 9088, 9656, 10592, 10880, 11254, 11360, 12070, 13240, 19312, 21184, 22508, 22720, 23501, 24140, 26480, 28135, 38624, 42368, 45016, 45440, 47002, 48280, 52960, 56270, 77248, 90032, 94004, 96560, 105920, 112540, 117505, 154496, 180064, 188008, 193120, 211840, 225080, 235010, 360128, 376016, 386240, 399517, 450160, 470020, 720256, 752032, 772480, 799034, 900320, 940040, 1504064, 1598068, 1800640, 1880080, 1997585, 3008128, 3196136, 3601280, 3760160, 3995170, 6392272, 7520320, 7990340, 12784544, 15040640, 15980680, 25569088, 31961360, 51138176, 63922720, 127845440, 255690880]

約数ペア:

[(1, 255690880), (2, 127845440), (4, 63922720), (5, 51138176), (8, 31961360), (10, 25569088), (16, 15980680), (17, 15040640), (20, 12784544), (32, 7990340), (34, 7520320), (40, 6392272), (64, 3995170), (68, 3760160), (71, 3601280), (80, 3196136), (85, 3008128), (128, 1997585), (136, 1880080), (142, 1800640), (160, 1598068), (170, 1504064), (272, 940040), (284, 900320), (320, 799034), (331, 772480), (340, 752032), (355, 720256), (544, 470020), (568, 450160), (640, 399517), (662, 386240), (680, 376016), (710, 360128), (1088, 235010), (1136, 225080), (1207, 211840), (1324, 193120), (1360, 188008), (1420, 180064), (1655, 154496), (2176, 117505), (2272, 112540), (2414, 105920), (2648, 96560), (2720, 94004), (2840, 90032), (3310, 77248), (4544, 56270), (4828, 52960), (5296, 48280), (5440, 47002), (5627, 45440), (5680, 45016), (6035, 42368), (6620, 38624), (9088, 28135), (9656, 26480), (10592, 24140), (10880, 23501), (11254, 22720), (11360, 22508), (12070, 21184), (13240, 19312)]