18848440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{541}}^1$

素因数の和:632

約数の個数: 64

約数和(自身を含む): 46438560

約数和(自身を除く): 27590120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 260, 268, 335, 520, 536, 541, 670, 871, 1082, 1340, 1742, 2164, 2680, 2705, 3484, 4328, 4355, 5410, 6968, 7033, 8710, 10820, 14066, 17420, 21640, 28132, 34840, 35165, 36247, 56264, 70330, 72494, 140660, 144988, 181235, 281320, 289976, 362470, 471211, 724940, 942422, 1449880, 1884844, 2356055, 3769688, 4712110, 9424220, 18848440]

約数ペア:

[(1, 18848440), (2, 9424220), (4, 4712110), (5, 3769688), (8, 2356055), (10, 1884844), (13, 1449880), (20, 942422), (26, 724940), (40, 471211), (52, 362470), (65, 289976), (67, 281320), (104, 181235), (130, 144988), (134, 140660), (260, 72494), (268, 70330), (335, 56264), (520, 36247), (536, 35165), (541, 34840), (670, 28132), (871, 21640), (1082, 17420), (1340, 14066), (1742, 10820), (2164, 8710), (2680, 7033), (2705, 6968), (3484, 5410), (4328, 4355)]