1279638120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{541}}^1\times {\mathrm{857}}^1$

素因数の和:1435

約数の個数: 128

約数和(自身を含む): 4017911040

約数和(自身を除く): 2738272920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 541, 552, 690, 857, 920, 1082, 1380, 1623, 1714, 2164, 2571, 2705, 2760, 3246, 3428, 4285, 4328, 5142, 5410, 6492, 6856, 8115, 8570, 10284, 10820, 12443, 12855, 12984, 16230, 17140, 19711, 20568, 21640, 24886, 25710, 32460, 34280, 37329, 39422, 49772, 51420, 59133, 62215, 64920, 74658, 78844, 98555, 99544, 102840, 118266, 124430, 149316, 157688, 186645, 197110, 236532, 248860, 295665, 298632, 373290, 394220, 463637, 473064, 497720, 591330, 746580, 788440, 927274, 1182660, 1390911, 1493160, 1854548, 2318185, 2365320, 2781822, 3709096, 4636370, 5563644, 6954555, 9272740, 10663651, 11127288, 13909110, 18545480, 21327302, 27818220, 31990953, 42654604, 53318255, 55636440, 63981906, 85309208, 106636510, 127963812, 159954765, 213273020, 255927624, 319909530, 426546040, 639819060, 1279638120]

約数ペア:

[(1, 1279638120), (2, 639819060), (3, 426546040), (4, 319909530), (5, 255927624), (6, 213273020), (8, 159954765), (10, 127963812), (12, 106636510), (15, 85309208), (20, 63981906), (23, 55636440), (24, 53318255), (30, 42654604), (40, 31990953), (46, 27818220), (60, 21327302), (69, 18545480), (92, 13909110), (115, 11127288), (120, 10663651), (138, 9272740), (184, 6954555), (230, 5563644), (276, 4636370), (345, 3709096), (460, 2781822), (541, 2365320), (552, 2318185), (690, 1854548), (857, 1493160), (920, 1390911), (1082, 1182660), (1380, 927274), (1623, 788440), (1714, 746580), (2164, 591330), (2571, 497720), (2705, 473064), (2760, 463637), (3246, 394220), (3428, 373290), (4285, 298632), (4328, 295665), (5142, 248860), (5410, 236532), (6492, 197110), (6856, 186645), (8115, 157688), (8570, 149316), (10284, 124430), (10820, 118266), (12443, 102840), (12855, 99544), (12984, 98555), (16230, 78844), (17140, 74658), (19711, 64920), (20568, 62215), (21640, 59133), (24886, 51420), (25710, 49772), (32460, 39422), (34280, 37329)]