81907920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{113761}}^1$

素因数の和:113780

約数の個数: 60

約数和(自身を含む): 275076516

約数和(自身を除く): 193168596

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, 113761, 227522, 341283, 455044, 568805, 682566, 910088, 1023849, 1137610, 1365132, 1706415, 1820176, 2047698, 2275220, 2730264, 3412830, 4095396, 4550440, 5119245, 5460528, 6825660, 8190792, 9100880, 10238490, 13651320, 16381584, 20476980, 27302640, 40953960, 81907920]

約数ペア:

[(1, 81907920), (2, 40953960), (3, 27302640), (4, 20476980), (5, 16381584), (6, 13651320), (8, 10238490), (9, 9100880), (10, 8190792), (12, 6825660), (15, 5460528), (16, 5119245), (18, 4550440), (20, 4095396), (24, 3412830), (30, 2730264), (36, 2275220), (40, 2047698), (45, 1820176), (48, 1706415), (60, 1365132), (72, 1137610), (80, 1023849), (90, 910088), (120, 682566), (144, 568805), (180, 455044), (240, 341283), (360, 227522), (720, 113761)]