289221520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{829}}^1$

素因数の和:945

約数の個数: 120

約数和(自身を含む): 791969400

約数和(自身を除く): 502747880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 89, 98, 112, 140, 178, 196, 245, 280, 356, 392, 445, 490, 560, 623, 712, 784, 829, 890, 980, 1246, 1424, 1658, 1780, 1960, 2492, 3115, 3316, 3560, 3920, 4145, 4361, 4984, 5803, 6230, 6632, 7120, 8290, 8722, 9968, 11606, 12460, 13264, 16580, 17444, 21805, 23212, 24920, 29015, 33160, 34888, 40621, 43610, 46424, 49840, 58030, 66320, 69776, 73781, 81242, 87220, 92848, 116060, 147562, 162484, 174440, 203105, 232120, 295124, 324968, 348880, 368905, 406210, 464240, 516467, 590248, 649936, 737810, 812420, 1032934, 1180496, 1475620, 1624840, 2065868, 2582335, 2951240, 3249680, 3615269, 4131736, 5164670, 5902480, 7230538, 8263472, 10329340, 14461076, 18076345, 20658680, 28922152, 36152690, 41317360, 57844304, 72305380, 144610760, 289221520]

約数ペア:

[(1, 289221520), (2, 144610760), (4, 72305380), (5, 57844304), (7, 41317360), (8, 36152690), (10, 28922152), (14, 20658680), (16, 18076345), (20, 14461076), (28, 10329340), (35, 8263472), (40, 7230538), (49, 5902480), (56, 5164670), (70, 4131736), (80, 3615269), (89, 3249680), (98, 2951240), (112, 2582335), (140, 2065868), (178, 1624840), (196, 1475620), (245, 1180496), (280, 1032934), (356, 812420), (392, 737810), (445, 649936), (490, 590248), (560, 516467), (623, 464240), (712, 406210), (784, 368905), (829, 348880), (890, 324968), (980, 295124), (1246, 232120), (1424, 203105), (1658, 174440), (1780, 162484), (1960, 147562), (2492, 116060), (3115, 92848), (3316, 87220), (3560, 81242), (3920, 73781), (4145, 69776), (4361, 66320), (4984, 58030), (5803, 49840), (6230, 46424), (6632, 43610), (7120, 40621), (8290, 34888), (8722, 33160), (9968, 29015), (11606, 24920), (12460, 23212), (13264, 21805), (16580, 17444)]