81841920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{21313}}^1$

素因数の和:21337

約数の個数: 72

約数和(自身を含む): 261394896

約数和(自身を除く): 179552976

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 21313, 42626, 63939, 85252, 106565, 127878, 170504, 213130, 255756, 319695, 341008, 426260, 511512, 639390, 682016, 852520, 1023024, 1278780, 1364032, 1705040, 2046048, 2557560, 2728064, 3410080, 4092096, 5115120, 5456128, 6820160, 8184192, 10230240, 13640320, 16368384, 20460480, 27280640, 40920960, 81841920]

約数ペア:

[(1, 81841920), (2, 40920960), (3, 27280640), (4, 20460480), (5, 16368384), (6, 13640320), (8, 10230240), (10, 8184192), (12, 6820160), (15, 5456128), (16, 5115120), (20, 4092096), (24, 3410080), (30, 2728064), (32, 2557560), (40, 2046048), (48, 1705040), (60, 1364032), (64, 1278780), (80, 1023024), (96, 852520), (120, 682016), (128, 639390), (160, 511512), (192, 426260), (240, 341008), (256, 319695), (320, 255756), (384, 213130), (480, 170504), (640, 127878), (768, 106565), (960, 85252), (1280, 63939), (1920, 42626), (3840, 21313)]