16291211480

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1\times {\mathrm{20521}}^1$

素因数の和:20844

約数の個数: 64

約数和(自身を含む): 37235116800

約数和(自身を除く): 20943905320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 223, 356, 445, 446, 712, 890, 892, 1115, 1780, 1784, 2230, 3560, 4460, 8920, 19847, 20521, 39694, 41042, 79388, 82084, 99235, 102605, 158776, 164168, 198470, 205210, 396940, 410420, 793880, 820840, 1826369, 3652738, 4576183, 7305476, 9131845, 9152366, 14610952, 18263690, 18304732, 22880915, 36527380, 36609464, 45761830, 73054760, 91523660, 183047320, 407280287, 814560574, 1629121148, 2036401435, 3258242296, 4072802870, 8145605740, 16291211480]

約数ペア:

[(1, 16291211480), (2, 8145605740), (4, 4072802870), (5, 3258242296), (8, 2036401435), (10, 1629121148), (20, 814560574), (40, 407280287), (89, 183047320), (178, 91523660), (223, 73054760), (356, 45761830), (445, 36609464), (446, 36527380), (712, 22880915), (890, 18304732), (892, 18263690), (1115, 14610952), (1780, 9152366), (1784, 9131845), (2230, 7305476), (3560, 4576183), (4460, 3652738), (8920, 1826369), (19847, 820840), (20521, 793880), (39694, 410420), (41042, 396940), (79388, 205210), (82084, 198470), (99235, 164168), (102605, 158776)]