19768500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:239

約数の個数: 144

約数和(自身を含む): 65415168

約数和(自身を除く): 45646668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 25, 30, 36, 45, 46, 50, 60, 69, 75, 90, 92, 100, 115, 125, 138, 150, 180, 191, 207, 225, 230, 250, 276, 300, 345, 375, 382, 414, 450, 460, 500, 573, 575, 690, 750, 764, 828, 900, 955, 1035, 1125, 1146, 1150, 1380, 1500, 1719, 1725, 1910, 2070, 2250, 2292, 2300, 2865, 2875, 3438, 3450, 3820, 4140, 4393, 4500, 4775, 5175, 5730, 5750, 6876, 6900, 8595, 8625, 8786, 9550, 10350, 11460, 11500, 13179, 14325, 17190, 17250, 17572, 19100, 20700, 21965, 23875, 25875, 26358, 28650, 34380, 34500, 39537, 42975, 43930, 47750, 51750, 52716, 57300, 65895, 71625, 79074, 85950, 87860, 95500, 103500, 109825, 131790, 143250, 158148, 171900, 197685, 214875, 219650, 263580, 286500, 329475, 395370, 429750, 439300, 549125, 658950, 790740, 859500, 988425, 1098250, 1317900, 1647375, 1976850, 2196500, 3294750, 3953700, 4942125, 6589500, 9884250, 19768500]

約数ペア:

[(1, 19768500), (2, 9884250), (3, 6589500), (4, 4942125), (5, 3953700), (6, 3294750), (9, 2196500), (10, 1976850), (12, 1647375), (15, 1317900), (18, 1098250), (20, 988425), (23, 859500), (25, 790740), (30, 658950), (36, 549125), (45, 439300), (46, 429750), (50, 395370), (60, 329475), (69, 286500), (75, 263580), (90, 219650), (92, 214875), (100, 197685), (115, 171900), (125, 158148), (138, 143250), (150, 131790), (180, 109825), (191, 103500), (207, 95500), (225, 87860), (230, 85950), (250, 79074), (276, 71625), (300, 65895), (345, 57300), (375, 52716), (382, 51750), (414, 47750), (450, 43930), (460, 42975), (500, 39537), (573, 34500), (575, 34380), (690, 28650), (750, 26358), (764, 25875), (828, 23875), (900, 21965), (955, 20700), (1035, 19100), (1125, 17572), (1146, 17250), (1150, 17190), (1380, 14325), (1500, 13179), (1719, 11500), (1725, 11460), (1910, 10350), (2070, 9550), (2250, 8786), (2292, 8625), (2300, 8595), (2865, 6900), (2875, 6876), (3438, 5750), (3450, 5730), (3820, 5175), (4140, 4775), (4393, 4500)]