18678465

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{367}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 37094400

約数和(自身を除く): 18415935

約数列:

[1, 3, 5, 9, 13, 15, 27, 29, 39, 45, 65, 87, 117, 135, 145, 195, 261, 351, 367, 377, 435, 585, 783, 1101, 1131, 1305, 1755, 1835, 1885, 3303, 3393, 3915, 4771, 5505, 5655, 9909, 10179, 10643, 14313, 16515, 16965, 23855, 31929, 42939, 49545, 50895, 53215, 71565, 95787, 128817, 138359, 159645, 214695, 287361, 415077, 478935, 644085, 691795, 1245231, 1436805, 2075385, 3735693, 6226155, 18678465]

約数ペア:

[(1, 18678465), (3, 6226155), (5, 3735693), (9, 2075385), (13, 1436805), (15, 1245231), (27, 691795), (29, 644085), (39, 478935), (45, 415077), (65, 287361), (87, 214695), (117, 159645), (135, 138359), (145, 128817), (195, 95787), (261, 71565), (351, 53215), (367, 50895), (377, 49545), (435, 42939), (585, 31929), (783, 23855), (1101, 16965), (1131, 16515), (1305, 14313), (1755, 10643), (1835, 10179), (1885, 9909), (3303, 5655), (3393, 5505), (3915, 4771)]