28485750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1999}}^1$

素因数の和:2038

約数の個数: 64

約数和(自身を含む): 74880000

約数和(自身を除く): 46394250

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 25, 30, 38, 50, 57, 75, 95, 114, 125, 150, 190, 250, 285, 375, 475, 570, 750, 950, 1425, 1999, 2375, 2850, 3998, 4750, 5997, 7125, 9995, 11994, 14250, 19990, 29985, 37981, 49975, 59970, 75962, 99950, 113943, 149925, 189905, 227886, 249875, 299850, 379810, 499750, 569715, 749625, 949525, 1139430, 1499250, 1899050, 2848575, 4747625, 5697150, 9495250, 14242875, 28485750]

約数ペア:

[(1, 28485750), (2, 14242875), (3, 9495250), (5, 5697150), (6, 4747625), (10, 2848575), (15, 1899050), (19, 1499250), (25, 1139430), (30, 949525), (38, 749625), (50, 569715), (57, 499750), (75, 379810), (95, 299850), (114, 249875), (125, 227886), (150, 189905), (190, 149925), (250, 113943), (285, 99950), (375, 75962), (475, 59970), (570, 49975), (750, 37981), (950, 29985), (1425, 19990), (1999, 14250), (2375, 11994), (2850, 9995), (3998, 7125), (4750, 5997)]