28714960

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:248

約数の個数: 80

約数和(自身を含む): 69973200

約数和(自身を除く): 41258240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 89, 109, 148, 178, 185, 218, 296, 356, 370, 436, 445, 545, 592, 712, 740, 872, 890, 1090, 1424, 1480, 1744, 1780, 2180, 2960, 3293, 3560, 4033, 4360, 6586, 7120, 8066, 8720, 9701, 13172, 16132, 16465, 19402, 20165, 26344, 32264, 32930, 38804, 40330, 48505, 52688, 64528, 65860, 77608, 80660, 97010, 131720, 155216, 161320, 194020, 263440, 322640, 358937, 388040, 717874, 776080, 1435748, 1794685, 2871496, 3589370, 5742992, 7178740, 14357480, 28714960]

約数ペア:

[(1, 28714960), (2, 14357480), (4, 7178740), (5, 5742992), (8, 3589370), (10, 2871496), (16, 1794685), (20, 1435748), (37, 776080), (40, 717874), (74, 388040), (80, 358937), (89, 322640), (109, 263440), (148, 194020), (178, 161320), (185, 155216), (218, 131720), (296, 97010), (356, 80660), (370, 77608), (436, 65860), (445, 64528), (545, 52688), (592, 48505), (712, 40330), (740, 38804), (872, 32930), (890, 32264), (1090, 26344), (1424, 20165), (1480, 19402), (1744, 16465), (1780, 16132), (2180, 13172), (2960, 9701), (3293, 8720), (3560, 8066), (4033, 7120), (4360, 6586)]