20495315160

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{639679}}^1$

素因数の和:639785

約数の個数: 96

約数和(自身を含む): 67358304000

約数和(自身を除く): 46862988840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 89, 90, 120, 178, 180, 267, 356, 360, 445, 534, 712, 801, 890, 1068, 1335, 1602, 1780, 2136, 2670, 3204, 3560, 4005, 5340, 6408, 8010, 10680, 16020, 32040, 639679, 1279358, 1919037, 2558716, 3198395, 3838074, 5117432, 5757111, 6396790, 7676148, 9595185, 11514222, 12793580, 15352296, 19190370, 23028444, 25587160, 28785555, 38380740, 46056888, 56931431, 57571110, 76761480, 113862862, 115142220, 170794293, 227725724, 230284440, 284657155, 341588586, 455451448, 512382879, 569314310, 683177172, 853971465, 1024765758, 1138628620, 1366354344, 1707942930, 2049531516, 2277257240, 2561914395, 3415885860, 4099063032, 5123828790, 6831771720, 10247657580, 20495315160]

約数ペア:

[(1, 20495315160), (2, 10247657580), (3, 6831771720), (4, 5123828790), (5, 4099063032), (6, 3415885860), (8, 2561914395), (9, 2277257240), (10, 2049531516), (12, 1707942930), (15, 1366354344), (18, 1138628620), (20, 1024765758), (24, 853971465), (30, 683177172), (36, 569314310), (40, 512382879), (45, 455451448), (60, 341588586), (72, 284657155), (89, 230284440), (90, 227725724), (120, 170794293), (178, 115142220), (180, 113862862), (267, 76761480), (356, 57571110), (360, 56931431), (445, 46056888), (534, 38380740), (712, 28785555), (801, 25587160), (890, 23028444), (1068, 19190370), (1335, 15352296), (1602, 12793580), (1780, 11514222), (2136, 9595185), (2670, 7676148), (3204, 6396790), (3560, 5757111), (4005, 5117432), (5340, 3838074), (6408, 3198395), (8010, 2558716), (10680, 1919037), (16020, 1279358), (32040, 639679)]