172793720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{499}}^1\times {\mathrm{787}}^1$

素因数の和:1308

約数の個数: 64

約数和(自身を含む): 425520000

約数和(自身を除く): 252726280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 499, 787, 998, 1574, 1996, 2495, 3148, 3935, 3992, 4990, 5489, 6296, 7870, 8657, 9980, 10978, 15740, 17314, 19960, 21956, 27445, 31480, 34628, 43285, 43912, 54890, 69256, 86570, 109780, 173140, 219560, 346280, 392713, 785426, 1570852, 1963565, 3141704, 3927130, 4319843, 7854260, 8639686, 15708520, 17279372, 21599215, 34558744, 43198430, 86396860, 172793720]

約数ペア:

[(1, 172793720), (2, 86396860), (4, 43198430), (5, 34558744), (8, 21599215), (10, 17279372), (11, 15708520), (20, 8639686), (22, 7854260), (40, 4319843), (44, 3927130), (55, 3141704), (88, 1963565), (110, 1570852), (220, 785426), (440, 392713), (499, 346280), (787, 219560), (998, 173140), (1574, 109780), (1996, 86570), (2495, 69256), (3148, 54890), (3935, 43912), (3992, 43285), (4990, 34628), (5489, 31480), (6296, 27445), (7870, 21956), (8657, 19960), (9980, 17314), (10978, 15740)]