19940700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5113}}^1$

素因数の和:5143

約数の個数: 72

約数和(自身を含む): 62145328

約数和(自身を除く): 42204628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 5113, 10226, 15339, 20452, 25565, 30678, 51130, 61356, 66469, 76695, 102260, 127825, 132938, 153390, 199407, 255650, 265876, 306780, 332345, 383475, 398814, 511300, 664690, 766950, 797628, 997035, 1329380, 1533900, 1661725, 1994070, 3323450, 3988140, 4985175, 6646900, 9970350, 19940700]

約数ペア:

[(1, 19940700), (2, 9970350), (3, 6646900), (4, 4985175), (5, 3988140), (6, 3323450), (10, 1994070), (12, 1661725), (13, 1533900), (15, 1329380), (20, 997035), (25, 797628), (26, 766950), (30, 664690), (39, 511300), (50, 398814), (52, 383475), (60, 332345), (65, 306780), (75, 265876), (78, 255650), (100, 199407), (130, 153390), (150, 132938), (156, 127825), (195, 102260), (260, 76695), (300, 66469), (325, 61356), (390, 51130), (650, 30678), (780, 25565), (975, 20452), (1300, 15339), (1950, 10226), (3900, 5113)]