19745100

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:197

約数の個数: 144

約数和(自身を含む): 64995840

約数和(自身を除く): 45250740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 71, 75, 90, 100, 103, 108, 135, 142, 150, 180, 206, 213, 225, 270, 284, 300, 309, 355, 412, 426, 450, 515, 540, 618, 639, 675, 710, 852, 900, 927, 1030, 1065, 1236, 1278, 1350, 1420, 1545, 1775, 1854, 1917, 2060, 2130, 2556, 2575, 2700, 2781, 3090, 3195, 3550, 3708, 3834, 4260, 4635, 5150, 5325, 5562, 6180, 6390, 7100, 7313, 7668, 7725, 9270, 9585, 10300, 10650, 11124, 12780, 13905, 14626, 15450, 15975, 18540, 19170, 21300, 21939, 23175, 27810, 29252, 30900, 31950, 36565, 38340, 43878, 46350, 47925, 55620, 63900, 65817, 69525, 73130, 87756, 92700, 95850, 109695, 131634, 139050, 146260, 182825, 191700, 197451, 219390, 263268, 278100, 329085, 365650, 394902, 438780, 548475, 658170, 731300, 789804, 987255, 1096950, 1316340, 1645425, 1974510, 2193900, 3290850, 3949020, 4936275, 6581700, 9872550, 19745100]

約数ペア:

[(1, 19745100), (2, 9872550), (3, 6581700), (4, 4936275), (5, 3949020), (6, 3290850), (9, 2193900), (10, 1974510), (12, 1645425), (15, 1316340), (18, 1096950), (20, 987255), (25, 789804), (27, 731300), (30, 658170), (36, 548475), (45, 438780), (50, 394902), (54, 365650), (60, 329085), (71, 278100), (75, 263268), (90, 219390), (100, 197451), (103, 191700), (108, 182825), (135, 146260), (142, 139050), (150, 131634), (180, 109695), (206, 95850), (213, 92700), (225, 87756), (270, 73130), (284, 69525), (300, 65817), (309, 63900), (355, 55620), (412, 47925), (426, 46350), (450, 43878), (515, 38340), (540, 36565), (618, 31950), (639, 30900), (675, 29252), (710, 27810), (852, 23175), (900, 21939), (927, 21300), (1030, 19170), (1065, 18540), (1236, 15975), (1278, 15450), (1350, 14626), (1420, 13905), (1545, 12780), (1775, 11124), (1854, 10650), (1917, 10300), (2060, 9585), (2130, 9270), (2556, 7725), (2575, 7668), (2700, 7313), (2781, 7100), (3090, 6390), (3195, 6180), (3550, 5562), (3708, 5325), (3834, 5150), (4260, 4635)]