18761730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{659}}^1$

素因数の和:755

約数の個数: 64

約数和(自身を含む): 49230720

約数和(自身を除く): 30468990

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 73, 78, 130, 146, 195, 219, 365, 390, 438, 659, 730, 949, 1095, 1318, 1898, 1977, 2190, 2847, 3295, 3954, 4745, 5694, 6590, 8567, 9490, 9885, 14235, 17134, 19770, 25701, 28470, 42835, 48107, 51402, 85670, 96214, 128505, 144321, 240535, 257010, 288642, 481070, 625391, 721605, 1250782, 1443210, 1876173, 3126955, 3752346, 6253910, 9380865, 18761730]

約数ペア:

[(1, 18761730), (2, 9380865), (3, 6253910), (5, 3752346), (6, 3126955), (10, 1876173), (13, 1443210), (15, 1250782), (26, 721605), (30, 625391), (39, 481070), (65, 288642), (73, 257010), (78, 240535), (130, 144321), (146, 128505), (195, 96214), (219, 85670), (365, 51402), (390, 48107), (438, 42835), (659, 28470), (730, 25701), (949, 19770), (1095, 17134), (1318, 14235), (1898, 9885), (1977, 9490), (2190, 8567), (2847, 6590), (3295, 5694), (3954, 4745)]