20292720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:327

約数の個数: 160

約数和(自身を含む): 73709568

約数和(自身を除く): 53416848

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 47, 48, 56, 60, 70, 80, 84, 94, 105, 112, 120, 140, 141, 168, 188, 210, 235, 240, 257, 280, 282, 329, 336, 376, 420, 470, 514, 560, 564, 658, 705, 752, 771, 840, 940, 987, 1028, 1128, 1285, 1316, 1410, 1542, 1645, 1680, 1799, 1880, 1974, 2056, 2256, 2570, 2632, 2820, 3084, 3290, 3598, 3760, 3855, 3948, 4112, 4935, 5140, 5264, 5397, 5640, 6168, 6580, 7196, 7710, 7896, 8995, 9870, 10280, 10794, 11280, 12079, 12336, 13160, 14392, 15420, 15792, 17990, 19740, 20560, 21588, 24158, 26320, 26985, 28784, 30840, 35980, 36237, 39480, 43176, 48316, 53970, 60395, 61680, 71960, 72474, 78960, 84553, 86352, 96632, 107940, 120790, 143920, 144948, 169106, 181185, 193264, 215880, 241580, 253659, 289896, 338212, 362370, 422765, 431760, 483160, 507318, 579792, 676424, 724740, 845530, 966320, 1014636, 1268295, 1352848, 1449480, 1691060, 2029272, 2536590, 2898960, 3382120, 4058544, 5073180, 6764240, 10146360, 20292720]

約数ペア:

[(1, 20292720), (2, 10146360), (3, 6764240), (4, 5073180), (5, 4058544), (6, 3382120), (7, 2898960), (8, 2536590), (10, 2029272), (12, 1691060), (14, 1449480), (15, 1352848), (16, 1268295), (20, 1014636), (21, 966320), (24, 845530), (28, 724740), (30, 676424), (35, 579792), (40, 507318), (42, 483160), (47, 431760), (48, 422765), (56, 362370), (60, 338212), (70, 289896), (80, 253659), (84, 241580), (94, 215880), (105, 193264), (112, 181185), (120, 169106), (140, 144948), (141, 143920), (168, 120790), (188, 107940), (210, 96632), (235, 86352), (240, 84553), (257, 78960), (280, 72474), (282, 71960), (329, 61680), (336, 60395), (376, 53970), (420, 48316), (470, 43176), (514, 39480), (560, 36237), (564, 35980), (658, 30840), (705, 28784), (752, 26985), (771, 26320), (840, 24158), (940, 21588), (987, 20560), (1028, 19740), (1128, 17990), (1285, 15792), (1316, 15420), (1410, 14392), (1542, 13160), (1645, 12336), (1680, 12079), (1799, 11280), (1880, 10794), (1974, 10280), (2056, 9870), (2256, 8995), (2570, 7896), (2632, 7710), (2820, 7196), (3084, 6580), (3290, 6168), (3598, 5640), (3760, 5397), (3855, 5264), (3948, 5140), (4112, 4935)]