289324760

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{1213}}^1$

素因数の和:1380

約数の個数: 64

約数和(自身を含む): 668671200

約数和(自身を除く): 379346440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 89, 134, 178, 268, 335, 356, 445, 536, 670, 712, 890, 1213, 1340, 1780, 2426, 2680, 3560, 4852, 5963, 6065, 9704, 11926, 12130, 23852, 24260, 29815, 47704, 48520, 59630, 81271, 107957, 119260, 162542, 215914, 238520, 325084, 406355, 431828, 539785, 650168, 812710, 863656, 1079570, 1625420, 2159140, 3250840, 4318280, 7233119, 14466238, 28932476, 36165595, 57864952, 72331190, 144662380, 289324760]

約数ペア:

[(1, 289324760), (2, 144662380), (4, 72331190), (5, 57864952), (8, 36165595), (10, 28932476), (20, 14466238), (40, 7233119), (67, 4318280), (89, 3250840), (134, 2159140), (178, 1625420), (268, 1079570), (335, 863656), (356, 812710), (445, 650168), (536, 539785), (670, 431828), (712, 406355), (890, 325084), (1213, 238520), (1340, 215914), (1780, 162542), (2426, 119260), (2680, 107957), (3560, 81271), (4852, 59630), (5963, 48520), (6065, 47704), (9704, 29815), (11926, 24260), (12130, 23852)]