81218880

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{28201}}^1$

素因数の和:28224

約数の個数: 84

約数和(自身を含む): 279369012

約数和(自身を除く): 198150132

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, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 28201, 56402, 84603, 112804, 141005, 169206, 225608, 253809, 282010, 338412, 423015, 451216, 507618, 564020, 676824, 846030, 902432, 1015236, 1128040, 1269045, 1353648, 1692060, 1804864, 2030472, 2256080, 2538090, 2707296, 3384120, 4060944, 4512160, 5076180, 5414592, 6768240, 8121888, 9024320, 10152360, 13536480, 16243776, 20304720, 27072960, 40609440, 81218880]

約数ペア:

[(1, 81218880), (2, 40609440), (3, 27072960), (4, 20304720), (5, 16243776), (6, 13536480), (8, 10152360), (9, 9024320), (10, 8121888), (12, 6768240), (15, 5414592), (16, 5076180), (18, 4512160), (20, 4060944), (24, 3384120), (30, 2707296), (32, 2538090), (36, 2256080), (40, 2030472), (45, 1804864), (48, 1692060), (60, 1353648), (64, 1269045), (72, 1128040), (80, 1015236), (90, 902432), (96, 846030), (120, 676824), (144, 564020), (160, 507618), (180, 451216), (192, 423015), (240, 338412), (288, 282010), (320, 253809), (360, 225608), (480, 169206), (576, 141005), (720, 112804), (960, 84603), (1440, 56402), (2880, 28201)]