19904688

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:251

約数の個数: 120

約数和(自身を含む): 60585408

約数和(自身を除く): 40680720

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 34, 36, 47, 48, 51, 68, 72, 94, 102, 136, 141, 144, 153, 173, 188, 204, 272, 282, 306, 346, 376, 408, 423, 519, 564, 612, 692, 752, 799, 816, 846, 1038, 1128, 1224, 1384, 1557, 1598, 1692, 2076, 2256, 2397, 2448, 2768, 2941, 3114, 3196, 3384, 4152, 4794, 5882, 6228, 6392, 6768, 7191, 8131, 8304, 8823, 9588, 11764, 12456, 12784, 14382, 16262, 17646, 19176, 23528, 24393, 24912, 26469, 28764, 32524, 35292, 38352, 47056, 48786, 52938, 57528, 65048, 70584, 73179, 97572, 105876, 115056, 130096, 138227, 141168, 146358, 195144, 211752, 276454, 292716, 390288, 414681, 423504, 552908, 585432, 829362, 1105816, 1170864, 1244043, 1658724, 2211632, 2488086, 3317448, 4976172, 6634896, 9952344, 19904688]

約数ペア:

[(1, 19904688), (2, 9952344), (3, 6634896), (4, 4976172), (6, 3317448), (8, 2488086), (9, 2211632), (12, 1658724), (16, 1244043), (17, 1170864), (18, 1105816), (24, 829362), (34, 585432), (36, 552908), (47, 423504), (48, 414681), (51, 390288), (68, 292716), (72, 276454), (94, 211752), (102, 195144), (136, 146358), (141, 141168), (144, 138227), (153, 130096), (173, 115056), (188, 105876), (204, 97572), (272, 73179), (282, 70584), (306, 65048), (346, 57528), (376, 52938), (408, 48786), (423, 47056), (519, 38352), (564, 35292), (612, 32524), (692, 28764), (752, 26469), (799, 24912), (816, 24393), (846, 23528), (1038, 19176), (1128, 17646), (1224, 16262), (1384, 14382), (1557, 12784), (1598, 12456), (1692, 11764), (2076, 9588), (2256, 8823), (2397, 8304), (2448, 8131), (2768, 7191), (2941, 6768), (3114, 6392), (3196, 6228), (3384, 5882), (4152, 4794)]