81810720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56813}}^1$

素因数の和:56834

約数の個数: 72

約数和(自身を含む): 279183996

約数和(自身を除く): 197373276

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 56813, 113626, 170439, 227252, 284065, 340878, 454504, 511317, 568130, 681756, 852195, 909008, 1022634, 1136260, 1363512, 1704390, 1818016, 2045268, 2272520, 2556585, 2727024, 3408780, 4090536, 4545040, 5113170, 5454048, 6817560, 8181072, 9090080, 10226340, 13635120, 16362144, 20452680, 27270240, 40905360, 81810720]

約数ペア:

[(1, 81810720), (2, 40905360), (3, 27270240), (4, 20452680), (5, 16362144), (6, 13635120), (8, 10226340), (9, 9090080), (10, 8181072), (12, 6817560), (15, 5454048), (16, 5113170), (18, 4545040), (20, 4090536), (24, 3408780), (30, 2727024), (32, 2556585), (36, 2272520), (40, 2045268), (45, 1818016), (48, 1704390), (60, 1363512), (72, 1136260), (80, 1022634), (90, 909008), (96, 852195), (120, 681756), (144, 568130), (160, 511317), (180, 454504), (240, 340878), (288, 284065), (360, 227252), (480, 170439), (720, 113626), (1440, 56813)]