81450240

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{21211}}^1$

素因数の和:21235

約数の個数: 72

約数和(自身を含む): 260143968

約数和(自身を除く): 178693728

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, 21211, 42422, 63633, 84844, 106055, 127266, 169688, 212110, 254532, 318165, 339376, 424220, 509064, 636330, 678752, 848440, 1018128, 1272660, 1357504, 1696880, 2036256, 2545320, 2715008, 3393760, 4072512, 5090640, 5430016, 6787520, 8145024, 10181280, 13575040, 16290048, 20362560, 27150080, 40725120, 81450240]

約数ペア:

[(1, 81450240), (2, 40725120), (3, 27150080), (4, 20362560), (5, 16290048), (6, 13575040), (8, 10181280), (10, 8145024), (12, 6787520), (15, 5430016), (16, 5090640), (20, 4072512), (24, 3393760), (30, 2715008), (32, 2545320), (40, 2036256), (48, 1696880), (60, 1357504), (64, 1272660), (80, 1018128), (96, 848440), (120, 678752), (128, 636330), (160, 509064), (192, 424220), (240, 339376), (256, 318165), (320, 254532), (384, 212110), (480, 169688), (640, 127266), (768, 106055), (960, 84844), (1280, 63633), (1920, 42422), (3840, 21211)]