18014720

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:281

約数の個数: 80

約数和(自身を含む): 44782848

約数和(自身を除く): 26768128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 227, 248, 256, 310, 320, 454, 496, 512, 620, 640, 908, 992, 1135, 1240, 1280, 1816, 1984, 2270, 2480, 2560, 3632, 3968, 4540, 4960, 7037, 7264, 7936, 9080, 9920, 14074, 14528, 15872, 18160, 19840, 28148, 29056, 35185, 36320, 39680, 56296, 58112, 70370, 72640, 79360, 112592, 116224, 140740, 145280, 225184, 281480, 290560, 450368, 562960, 581120, 900736, 1125920, 1801472, 2251840, 3602944, 4503680, 9007360, 18014720]

約数ペア:

[(1, 18014720), (2, 9007360), (4, 4503680), (5, 3602944), (8, 2251840), (10, 1801472), (16, 1125920), (20, 900736), (31, 581120), (32, 562960), (40, 450368), (62, 290560), (64, 281480), (80, 225184), (124, 145280), (128, 140740), (155, 116224), (160, 112592), (227, 79360), (248, 72640), (256, 70370), (310, 58112), (320, 56296), (454, 39680), (496, 36320), (512, 35185), (620, 29056), (640, 28148), (908, 19840), (992, 18160), (1135, 15872), (1240, 14528), (1280, 14074), (1816, 9920), (1984, 9080), (2270, 7936), (2480, 7264), (2560, 7037), (3632, 4960), (3968, 4540)]