20123100

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:309

約数の個数: 144

約数和(自身を含む): 67183200

約数和(自身を除く): 47060100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 29, 30, 36, 45, 50, 54, 58, 60, 75, 87, 90, 100, 108, 116, 135, 145, 150, 174, 180, 225, 257, 261, 270, 290, 300, 348, 435, 450, 514, 522, 540, 580, 675, 725, 771, 783, 870, 900, 1028, 1044, 1285, 1305, 1350, 1450, 1542, 1566, 1740, 2175, 2313, 2570, 2610, 2700, 2900, 3084, 3132, 3855, 3915, 4350, 4626, 5140, 5220, 6425, 6525, 6939, 7453, 7710, 7830, 8700, 9252, 11565, 12850, 13050, 13878, 14906, 15420, 15660, 19275, 19575, 22359, 23130, 25700, 26100, 27756, 29812, 34695, 37265, 38550, 39150, 44718, 46260, 57825, 67077, 69390, 74530, 77100, 78300, 89436, 111795, 115650, 134154, 138780, 149060, 173475, 186325, 201231, 223590, 231300, 268308, 335385, 346950, 372650, 402462, 447180, 558975, 670770, 693900, 745300, 804924, 1006155, 1117950, 1341540, 1676925, 2012310, 2235900, 3353850, 4024620, 5030775, 6707700, 10061550, 20123100]

約数ペア:

[(1, 20123100), (2, 10061550), (3, 6707700), (4, 5030775), (5, 4024620), (6, 3353850), (9, 2235900), (10, 2012310), (12, 1676925), (15, 1341540), (18, 1117950), (20, 1006155), (25, 804924), (27, 745300), (29, 693900), (30, 670770), (36, 558975), (45, 447180), (50, 402462), (54, 372650), (58, 346950), (60, 335385), (75, 268308), (87, 231300), (90, 223590), (100, 201231), (108, 186325), (116, 173475), (135, 149060), (145, 138780), (150, 134154), (174, 115650), (180, 111795), (225, 89436), (257, 78300), (261, 77100), (270, 74530), (290, 69390), (300, 67077), (348, 57825), (435, 46260), (450, 44718), (514, 39150), (522, 38550), (540, 37265), (580, 34695), (675, 29812), (725, 27756), (771, 26100), (783, 25700), (870, 23130), (900, 22359), (1028, 19575), (1044, 19275), (1285, 15660), (1305, 15420), (1350, 14906), (1450, 13878), (1542, 13050), (1566, 12850), (1740, 11565), (2175, 9252), (2313, 8700), (2570, 7830), (2610, 7710), (2700, 7453), (2900, 6939), (3084, 6525), (3132, 6425), (3855, 5220), (3915, 5140), (4350, 4626)]