81144960

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3251}}^1$

素因数の和:3286

約数の個数: 128

約数和(自身を含む): 278631360

約数和(自身を除く): 197486400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 780, 832, 960, 1040, 1248, 1560, 1664, 1920, 2080, 2496, 3120, 3251, 4160, 4992, 6240, 6502, 8320, 9753, 12480, 13004, 16255, 19506, 24960, 26008, 32510, 39012, 42263, 48765, 52016, 65020, 78024, 84526, 97530, 104032, 126789, 130040, 156048, 169052, 195060, 208064, 211315, 253578, 260080, 312096, 338104, 390120, 416128, 422630, 507156, 520160, 624192, 633945, 676208, 780240, 845260, 1014312, 1040320, 1248384, 1267890, 1352416, 1560480, 1690520, 2028624, 2080640, 2535780, 2704832, 3120960, 3381040, 4057248, 5071560, 5409664, 6241920, 6762080, 8114496, 10143120, 13524160, 16228992, 20286240, 27048320, 40572480, 81144960]

約数ペア:

[(1, 81144960), (2, 40572480), (3, 27048320), (4, 20286240), (5, 16228992), (6, 13524160), (8, 10143120), (10, 8114496), (12, 6762080), (13, 6241920), (15, 5409664), (16, 5071560), (20, 4057248), (24, 3381040), (26, 3120960), (30, 2704832), (32, 2535780), (39, 2080640), (40, 2028624), (48, 1690520), (52, 1560480), (60, 1352416), (64, 1267890), (65, 1248384), (78, 1040320), (80, 1014312), (96, 845260), (104, 780240), (120, 676208), (128, 633945), (130, 624192), (156, 520160), (160, 507156), (192, 422630), (195, 416128), (208, 390120), (240, 338104), (260, 312096), (312, 260080), (320, 253578), (384, 211315), (390, 208064), (416, 195060), (480, 169052), (520, 156048), (624, 130040), (640, 126789), (780, 104032), (832, 97530), (960, 84526), (1040, 78024), (1248, 65020), (1560, 52016), (1664, 48765), (1920, 42263), (2080, 39012), (2496, 32510), (3120, 26008), (3251, 24960), (4160, 19506), (4992, 16255), (6240, 13004), (6502, 12480), (8320, 9753)]