81303120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{112921}}^1$

素因数の和:112940

約数の個数: 60

約数和(自身を含む): 273045396

約数和(自身を除く): 191742276

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 112921, 225842, 338763, 451684, 564605, 677526, 903368, 1016289, 1129210, 1355052, 1693815, 1806736, 2032578, 2258420, 2710104, 3387630, 4065156, 4516840, 5081445, 5420208, 6775260, 8130312, 9033680, 10162890, 13550520, 16260624, 20325780, 27101040, 40651560, 81303120]

約数ペア:

[(1, 81303120), (2, 40651560), (3, 27101040), (4, 20325780), (5, 16260624), (6, 13550520), (8, 10162890), (9, 9033680), (10, 8130312), (12, 6775260), (15, 5420208), (16, 5081445), (18, 4516840), (20, 4065156), (24, 3387630), (30, 2710104), (36, 2258420), (40, 2032578), (45, 1806736), (48, 1693815), (60, 1355052), (72, 1129210), (80, 1016289), (90, 903368), (120, 677526), (144, 564605), (180, 451684), (240, 338763), (360, 225842), (720, 112921)]