21902560

素因数分解:

$2^5\times 5^1\times {\mathrm{367}}^1\times {\mathrm{373}}^1$

素因数の和:755

約数の個数: 48

約数和(自身を含む): 52024896

約数和(自身を除く): 30122336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 367, 373, 734, 746, 1468, 1492, 1835, 1865, 2936, 2984, 3670, 3730, 5872, 5968, 7340, 7460, 11744, 11936, 14680, 14920, 29360, 29840, 58720, 59680, 136891, 273782, 547564, 684455, 1095128, 1368910, 2190256, 2737820, 4380512, 5475640, 10951280, 21902560]

約数ペア:

[(1, 21902560), (2, 10951280), (4, 5475640), (5, 4380512), (8, 2737820), (10, 2190256), (16, 1368910), (20, 1095128), (32, 684455), (40, 547564), (80, 273782), (160, 136891), (367, 59680), (373, 58720), (734, 29840), (746, 29360), (1468, 14920), (1492, 14680), (1835, 11936), (1865, 11744), (2936, 7460), (2984, 7340), (3670, 5968), (3730, 5872)]