19941720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1213}}^1$

素因数の和:1364

約数の個数: 64

約数和(自身を含む): 60311520

約数和(自身を除く): 40369800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 137, 274, 411, 548, 685, 822, 1096, 1213, 1370, 1644, 2055, 2426, 2740, 3288, 3639, 4110, 4852, 5480, 6065, 7278, 8220, 9704, 12130, 14556, 16440, 18195, 24260, 29112, 36390, 48520, 72780, 145560, 166181, 332362, 498543, 664724, 830905, 997086, 1329448, 1661810, 1994172, 2492715, 3323620, 3988344, 4985430, 6647240, 9970860, 19941720]

約数ペア:

[(1, 19941720), (2, 9970860), (3, 6647240), (4, 4985430), (5, 3988344), (6, 3323620), (8, 2492715), (10, 1994172), (12, 1661810), (15, 1329448), (20, 997086), (24, 830905), (30, 664724), (40, 498543), (60, 332362), (120, 166181), (137, 145560), (274, 72780), (411, 48520), (548, 36390), (685, 29112), (822, 24260), (1096, 18195), (1213, 16440), (1370, 14556), (1644, 12130), (2055, 9704), (2426, 8220), (2740, 7278), (3288, 6065), (3639, 5480), (4110, 4852)]