21830720

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4013}}^1$

素因数の和:4047

約数の個数: 56

約数和(自身を含む): 55056024

約数和(自身を除く): 33225304

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 4013, 5440, 8026, 16052, 20065, 32104, 40130, 64208, 68221, 80260, 128416, 136442, 160520, 256832, 272884, 321040, 341105, 545768, 642080, 682210, 1091536, 1284160, 1364420, 2183072, 2728840, 4366144, 5457680, 10915360, 21830720]

約数ペア:

[(1, 21830720), (2, 10915360), (4, 5457680), (5, 4366144), (8, 2728840), (10, 2183072), (16, 1364420), (17, 1284160), (20, 1091536), (32, 682210), (34, 642080), (40, 545768), (64, 341105), (68, 321040), (80, 272884), (85, 256832), (136, 160520), (160, 136442), (170, 128416), (272, 80260), (320, 68221), (340, 64208), (544, 40130), (680, 32104), (1088, 20065), (1360, 16052), (2720, 8026), (4013, 5440)]