18338360

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 44513280

約数和(自身を除く): 26174920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 230, 248, 310, 460, 620, 643, 713, 920, 1240, 1286, 1426, 2572, 2852, 3215, 3565, 5144, 5704, 6430, 7130, 12860, 14260, 14789, 19933, 25720, 28520, 29578, 39866, 59156, 73945, 79732, 99665, 118312, 147890, 159464, 199330, 295780, 398660, 458459, 591560, 797320, 916918, 1833836, 2292295, 3667672, 4584590, 9169180, 18338360]

約数ペア:

[(1, 18338360), (2, 9169180), (4, 4584590), (5, 3667672), (8, 2292295), (10, 1833836), (20, 916918), (23, 797320), (31, 591560), (40, 458459), (46, 398660), (62, 295780), (92, 199330), (115, 159464), (124, 147890), (155, 118312), (184, 99665), (230, 79732), (248, 73945), (310, 59156), (460, 39866), (620, 29578), (643, 28520), (713, 25720), (920, 19933), (1240, 14789), (1286, 14260), (1426, 12860), (2572, 7130), (2852, 6430), (3215, 5704), (3565, 5144)]