397345100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{1283}}^1$

素因数の和:1479

約数の個数: 72

約数和(自身を含む): 913899840

約数和(自身を除く): 516554740

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 163, 190, 326, 380, 475, 652, 815, 950, 1283, 1630, 1900, 2566, 3097, 3260, 4075, 5132, 6194, 6415, 8150, 12388, 12830, 15485, 16300, 24377, 25660, 30970, 32075, 48754, 61940, 64150, 77425, 97508, 121885, 128300, 154850, 209129, 243770, 309700, 418258, 487540, 609425, 836516, 1045645, 1218850, 2091290, 2437700, 3973451, 4182580, 5228225, 7946902, 10456450, 15893804, 19867255, 20912900, 39734510, 79469020, 99336275, 198672550, 397345100]

約数ペア:

[(1, 397345100), (2, 198672550), (4, 99336275), (5, 79469020), (10, 39734510), (19, 20912900), (20, 19867255), (25, 15893804), (38, 10456450), (50, 7946902), (76, 5228225), (95, 4182580), (100, 3973451), (163, 2437700), (190, 2091290), (326, 1218850), (380, 1045645), (475, 836516), (652, 609425), (815, 487540), (950, 418258), (1283, 309700), (1630, 243770), (1900, 209129), (2566, 154850), (3097, 128300), (3260, 121885), (4075, 97508), (5132, 77425), (6194, 64150), (6415, 61940), (8150, 48754), (12388, 32075), (12830, 30970), (15485, 25660), (16300, 24377)]