281759985

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{887}}^1$

素因数の和:1095

約数の個数: 64

約数和(自身を含む): 543029760

約数和(自身を除く): 261269775

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 181, 195, 351, 543, 585, 887, 905, 1629, 1755, 2353, 2661, 2715, 4435, 4887, 7059, 7983, 8145, 11531, 11765, 13305, 21177, 23949, 24435, 34593, 35295, 39915, 57655, 63531, 103779, 105885, 119745, 160547, 172965, 311337, 317655, 481641, 518895, 802735, 1444923, 1556685, 2087111, 2408205, 4334769, 6261333, 7224615, 10435555, 18783999, 21673845, 31306665, 56351997, 93919995, 281759985]

約数ペア:

[(1, 281759985), (3, 93919995), (5, 56351997), (9, 31306665), (13, 21673845), (15, 18783999), (27, 10435555), (39, 7224615), (45, 6261333), (65, 4334769), (117, 2408205), (135, 2087111), (181, 1556685), (195, 1444923), (351, 802735), (543, 518895), (585, 481641), (887, 317655), (905, 311337), (1629, 172965), (1755, 160547), (2353, 119745), (2661, 105885), (2715, 103779), (4435, 63531), (4887, 57655), (7059, 39915), (7983, 35295), (8145, 34593), (11531, 24435), (11765, 23949), (13305, 21177)]