18540340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:257

約数の個数: 96

約数和(自身を含む): 48996864

約数和(自身を除く): 30456524

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 61, 65, 70, 91, 122, 130, 140, 167, 182, 244, 260, 305, 334, 364, 427, 455, 610, 668, 793, 835, 854, 910, 1169, 1220, 1586, 1670, 1708, 1820, 2135, 2171, 2338, 3172, 3340, 3965, 4270, 4342, 4676, 5551, 5845, 7930, 8540, 8684, 10187, 10855, 11102, 11690, 15197, 15860, 20374, 21710, 22204, 23380, 27755, 30394, 40748, 43420, 50935, 55510, 60788, 71309, 75985, 101870, 111020, 132431, 142618, 151970, 203740, 264862, 285236, 303940, 356545, 529724, 662155, 713090, 927017, 1324310, 1426180, 1854034, 2648620, 3708068, 4635085, 9270170, 18540340]

約数ペア:

[(1, 18540340), (2, 9270170), (4, 4635085), (5, 3708068), (7, 2648620), (10, 1854034), (13, 1426180), (14, 1324310), (20, 927017), (26, 713090), (28, 662155), (35, 529724), (52, 356545), (61, 303940), (65, 285236), (70, 264862), (91, 203740), (122, 151970), (130, 142618), (140, 132431), (167, 111020), (182, 101870), (244, 75985), (260, 71309), (305, 60788), (334, 55510), (364, 50935), (427, 43420), (455, 40748), (610, 30394), (668, 27755), (793, 23380), (835, 22204), (854, 21710), (910, 20374), (1169, 15860), (1220, 15197), (1586, 11690), (1670, 11102), (1708, 10855), (1820, 10187), (2135, 8684), (2171, 8540), (2338, 7930), (3172, 5845), (3340, 5551), (3965, 4676), (4270, 4342)]