22720768

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:463

約数の個数: 72

約数和(自身を含む): 53634560

約数和(自身を除く): 30913792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 409, 434, 448, 496, 818, 868, 896, 992, 1636, 1736, 1792, 1984, 2863, 3272, 3472, 3968, 5726, 6544, 6944, 7936, 11452, 12679, 13088, 13888, 22904, 25358, 26176, 27776, 45808, 50716, 52352, 55552, 88753, 91616, 101432, 104704, 177506, 183232, 202864, 355012, 366464, 405728, 710024, 732928, 811456, 1420048, 1622912, 2840096, 3245824, 5680192, 11360384, 22720768]

約数ペア:

[(1, 22720768), (2, 11360384), (4, 5680192), (7, 3245824), (8, 2840096), (14, 1622912), (16, 1420048), (28, 811456), (31, 732928), (32, 710024), (56, 405728), (62, 366464), (64, 355012), (112, 202864), (124, 183232), (128, 177506), (217, 104704), (224, 101432), (248, 91616), (256, 88753), (409, 55552), (434, 52352), (448, 50716), (496, 45808), (818, 27776), (868, 26176), (896, 25358), (992, 22904), (1636, 13888), (1736, 13088), (1792, 12679), (1984, 11452), (2863, 7936), (3272, 6944), (3472, 6544), (3968, 5726)]