81260640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56431}}^1$

素因数の和:56452

約数の個数: 72

約数和(自身を含む): 277306848

約数和(自身を除く): 196046208

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, 56431, 112862, 169293, 225724, 282155, 338586, 451448, 507879, 564310, 677172, 846465, 902896, 1015758, 1128620, 1354344, 1692930, 1805792, 2031516, 2257240, 2539395, 2708688, 3385860, 4063032, 4514480, 5078790, 5417376, 6771720, 8126064, 9028960, 10157580, 13543440, 16252128, 20315160, 27086880, 40630320, 81260640]

約数ペア:

[(1, 81260640), (2, 40630320), (3, 27086880), (4, 20315160), (5, 16252128), (6, 13543440), (8, 10157580), (9, 9028960), (10, 8126064), (12, 6771720), (15, 5417376), (16, 5078790), (18, 4514480), (20, 4063032), (24, 3385860), (30, 2708688), (32, 2539395), (36, 2257240), (40, 2031516), (45, 1805792), (48, 1692930), (60, 1354344), (72, 1128620), (80, 1015758), (90, 902896), (96, 846465), (120, 677172), (144, 564310), (160, 507879), (180, 451448), (240, 338586), (288, 282155), (360, 225724), (480, 169293), (720, 112862), (1440, 56431)]