128647440

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{19853}}^1$

素因数の和:19878

約数の個数: 100

約数和(自身を含む): 446834124

約数和(自身を除く): 318186684

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 19853, 39706, 59559, 79412, 99265, 119118, 158824, 178677, 198530, 238236, 297795, 317648, 357354, 397060, 476472, 536031, 595590, 714708, 794120, 893385, 952944, 1072062, 1191180, 1429416, 1588240, 1608093, 1786770, 2144124, 2382360, 2680155, 2858832, 3216186, 3573540, 4288248, 4764720, 5360310, 6432372, 7147080, 8040465, 8576496, 10720620, 12864744, 14294160, 16080930, 21441240, 25729488, 32161860, 42882480, 64323720, 128647440]

約数ペア:

[(1, 128647440), (2, 64323720), (3, 42882480), (4, 32161860), (5, 25729488), (6, 21441240), (8, 16080930), (9, 14294160), (10, 12864744), (12, 10720620), (15, 8576496), (16, 8040465), (18, 7147080), (20, 6432372), (24, 5360310), (27, 4764720), (30, 4288248), (36, 3573540), (40, 3216186), (45, 2858832), (48, 2680155), (54, 2382360), (60, 2144124), (72, 1786770), (80, 1608093), (81, 1588240), (90, 1429416), (108, 1191180), (120, 1072062), (135, 952944), (144, 893385), (162, 794120), (180, 714708), (216, 595590), (240, 536031), (270, 476472), (324, 397060), (360, 357354), (405, 317648), (432, 297795), (540, 238236), (648, 198530), (720, 178677), (810, 158824), (1080, 119118), (1296, 99265), (1620, 79412), (2160, 59559), (3240, 39706), (6480, 19853)]