9801820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1321}}^1$

素因数の和:1390

約数の個数: 48

約数和(自身を含む): 23986368

約数和(自身を除く): 14184548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1321, 1484, 1855, 2642, 3710, 5284, 6605, 7420, 9247, 13210, 18494, 26420, 36988, 46235, 70013, 92470, 140026, 184940, 280052, 350065, 490091, 700130, 980182, 1400260, 1960364, 2450455, 4900910, 9801820]

約数ペア:

[(1, 9801820), (2, 4900910), (4, 2450455), (5, 1960364), (7, 1400260), (10, 980182), (14, 700130), (20, 490091), (28, 350065), (35, 280052), (53, 184940), (70, 140026), (106, 92470), (140, 70013), (212, 46235), (265, 36988), (371, 26420), (530, 18494), (742, 13210), (1060, 9247), (1321, 7420), (1484, 6605), (1855, 5284), (2642, 3710)]