28117000

素因数分解:

$2^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{907}}^1$

素因数の和:959

約数の個数: 64

約数和(自身を含む): 67991040

約数和(自身を除く): 39874040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 125, 155, 200, 248, 250, 310, 500, 620, 775, 907, 1000, 1240, 1550, 1814, 3100, 3628, 3875, 4535, 6200, 7256, 7750, 9070, 15500, 18140, 22675, 28117, 31000, 36280, 45350, 56234, 90700, 112468, 113375, 140585, 181400, 224936, 226750, 281170, 453500, 562340, 702925, 907000, 1124680, 1405850, 2811700, 3514625, 5623400, 7029250, 14058500, 28117000]

約数ペア:

[(1, 28117000), (2, 14058500), (4, 7029250), (5, 5623400), (8, 3514625), (10, 2811700), (20, 1405850), (25, 1124680), (31, 907000), (40, 702925), (50, 562340), (62, 453500), (100, 281170), (124, 226750), (125, 224936), (155, 181400), (200, 140585), (248, 113375), (250, 112468), (310, 90700), (500, 56234), (620, 45350), (775, 36280), (907, 31000), (1000, 28117), (1240, 22675), (1550, 18140), (1814, 15500), (3100, 9070), (3628, 7750), (3875, 7256), (4535, 6200)]