20993600

素因数分解:

$2^6\times 5^2\times {\mathrm{13121}}^1$

素因数の和:13143

約数の個数: 42

約数和(自身を含む): 51661314

約数和(自身を除く): 30667714

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 13121, 26242, 52484, 65605, 104968, 131210, 209936, 262420, 328025, 419872, 524840, 656050, 839744, 1049680, 1312100, 2099360, 2624200, 4198720, 5248400, 10496800, 20993600]

約数ペア:

[(1, 20993600), (2, 10496800), (4, 5248400), (5, 4198720), (8, 2624200), (10, 2099360), (16, 1312100), (20, 1049680), (25, 839744), (32, 656050), (40, 524840), (50, 419872), (64, 328025), (80, 262420), (100, 209936), (160, 131210), (200, 104968), (320, 65605), (400, 52484), (800, 26242), (1600, 13121)]