71299980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{29}}^2\times {\mathrm{157}}^1$

素因数の和:233

約数の個数: 144

約数和(自身を含む): 231198240

約数和(自身を除く): 159898260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 54, 58, 60, 87, 90, 108, 116, 135, 145, 157, 174, 180, 261, 270, 290, 314, 348, 435, 471, 522, 540, 580, 628, 783, 785, 841, 870, 942, 1044, 1305, 1413, 1566, 1570, 1682, 1740, 1884, 2355, 2523, 2610, 2826, 3132, 3140, 3364, 3915, 4205, 4239, 4553, 4710, 5046, 5220, 5652, 7065, 7569, 7830, 8410, 8478, 9106, 9420, 10092, 12615, 13659, 14130, 15138, 15660, 16820, 16956, 18212, 21195, 22707, 22765, 25230, 27318, 28260, 30276, 37845, 40977, 42390, 45414, 45530, 50460, 54636, 68295, 75690, 81954, 84780, 90828, 91060, 113535, 122931, 132037, 136590, 151380, 163908, 204885, 227070, 245862, 264074, 273180, 396111, 409770, 454140, 491724, 528148, 614655, 660185, 792222, 819540, 1188333, 1229310, 1320370, 1584444, 1980555, 2376666, 2458620, 2640740, 3564999, 3961110, 4753332, 5941665, 7129998, 7922220, 11883330, 14259996, 17824995, 23766660, 35649990, 71299980]

約数ペア:

[(1, 71299980), (2, 35649990), (3, 23766660), (4, 17824995), (5, 14259996), (6, 11883330), (9, 7922220), (10, 7129998), (12, 5941665), (15, 4753332), (18, 3961110), (20, 3564999), (27, 2640740), (29, 2458620), (30, 2376666), (36, 1980555), (45, 1584444), (54, 1320370), (58, 1229310), (60, 1188333), (87, 819540), (90, 792222), (108, 660185), (116, 614655), (135, 528148), (145, 491724), (157, 454140), (174, 409770), (180, 396111), (261, 273180), (270, 264074), (290, 245862), (314, 227070), (348, 204885), (435, 163908), (471, 151380), (522, 136590), (540, 132037), (580, 122931), (628, 113535), (783, 91060), (785, 90828), (841, 84780), (870, 81954), (942, 75690), (1044, 68295), (1305, 54636), (1413, 50460), (1566, 45530), (1570, 45414), (1682, 42390), (1740, 40977), (1884, 37845), (2355, 30276), (2523, 28260), (2610, 27318), (2826, 25230), (3132, 22765), (3140, 22707), (3364, 21195), (3915, 18212), (4205, 16956), (4239, 16820), (4553, 15660), (4710, 15138), (5046, 14130), (5220, 13659), (5652, 12615), (7065, 10092), (7569, 9420), (7830, 9106), (8410, 8478)]