28442500

素因数分解:

$2^2\times 5^4\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:422

約数の個数: 60

約数和(自身を含む): 64379392

約数和(自身を除く): 35936892

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 367, 500, 620, 625, 734, 775, 1250, 1468, 1550, 1835, 2500, 3100, 3670, 3875, 7340, 7750, 9175, 11377, 15500, 18350, 19375, 22754, 36700, 38750, 45508, 45875, 56885, 77500, 91750, 113770, 183500, 227540, 229375, 284425, 458750, 568850, 917500, 1137700, 1422125, 2844250, 5688500, 7110625, 14221250, 28442500]

約数ペア:

[(1, 28442500), (2, 14221250), (4, 7110625), (5, 5688500), (10, 2844250), (20, 1422125), (25, 1137700), (31, 917500), (50, 568850), (62, 458750), (100, 284425), (124, 229375), (125, 227540), (155, 183500), (250, 113770), (310, 91750), (367, 77500), (500, 56885), (620, 45875), (625, 45508), (734, 38750), (775, 36700), (1250, 22754), (1468, 19375), (1550, 18350), (1835, 15500), (2500, 11377), (3100, 9175), (3670, 7750), (3875, 7340)]