8781480

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:240

約数の個数: 128

約数和(自身を含む): 30067200

約数和(自身を除く): 21285720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 90, 94, 108, 120, 135, 141, 173, 180, 188, 216, 235, 270, 282, 346, 360, 376, 423, 470, 519, 540, 564, 692, 705, 846, 865, 940, 1038, 1080, 1128, 1269, 1384, 1410, 1557, 1692, 1730, 1880, 2076, 2115, 2538, 2595, 2820, 3114, 3384, 3460, 4152, 4230, 4671, 5076, 5190, 5640, 6228, 6345, 6920, 7785, 8131, 8460, 9342, 10152, 10380, 12456, 12690, 15570, 16262, 16920, 18684, 20760, 23355, 24393, 25380, 31140, 32524, 37368, 40655, 46710, 48786, 50760, 62280, 65048, 73179, 81310, 93420, 97572, 121965, 146358, 162620, 186840, 195144, 219537, 243930, 292716, 325240, 365895, 439074, 487860, 585432, 731790, 878148, 975720, 1097685, 1463580, 1756296, 2195370, 2927160, 4390740, 8781480]

約数ペア:

[(1, 8781480), (2, 4390740), (3, 2927160), (4, 2195370), (5, 1756296), (6, 1463580), (8, 1097685), (9, 975720), (10, 878148), (12, 731790), (15, 585432), (18, 487860), (20, 439074), (24, 365895), (27, 325240), (30, 292716), (36, 243930), (40, 219537), (45, 195144), (47, 186840), (54, 162620), (60, 146358), (72, 121965), (90, 97572), (94, 93420), (108, 81310), (120, 73179), (135, 65048), (141, 62280), (173, 50760), (180, 48786), (188, 46710), (216, 40655), (235, 37368), (270, 32524), (282, 31140), (346, 25380), (360, 24393), (376, 23355), (423, 20760), (470, 18684), (519, 16920), (540, 16262), (564, 15570), (692, 12690), (705, 12456), (846, 10380), (865, 10152), (940, 9342), (1038, 8460), (1080, 8131), (1128, 7785), (1269, 6920), (1384, 6345), (1410, 6228), (1557, 5640), (1692, 5190), (1730, 5076), (1880, 4671), (2076, 4230), (2115, 4152), (2538, 3460), (2595, 3384), (2820, 3114)]