18440730

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{887}}^1$

素因数の和:921

約数の個数: 128

約数和(自身を含む): 61378560

約数和(自身を除く): 42937830

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 27, 30, 33, 35, 42, 45, 54, 55, 63, 66, 70, 77, 90, 99, 105, 110, 126, 135, 154, 165, 189, 198, 210, 231, 270, 297, 315, 330, 378, 385, 462, 495, 594, 630, 693, 770, 887, 945, 990, 1155, 1386, 1485, 1774, 1890, 2079, 2310, 2661, 2970, 3465, 4158, 4435, 5322, 6209, 6930, 7983, 8870, 9757, 10395, 12418, 13305, 15966, 18627, 19514, 20790, 23949, 26610, 29271, 31045, 37254, 39915, 47898, 48785, 55881, 58542, 62090, 68299, 79830, 87813, 93135, 97570, 111762, 119745, 136598, 146355, 167643, 175626, 186270, 204897, 239490, 263439, 279405, 292710, 335286, 341495, 409794, 439065, 526878, 558810, 614691, 682990, 838215, 878130, 1024485, 1229382, 1317195, 1676430, 1844073, 2048970, 2634390, 3073455, 3688146, 6146910, 9220365, 18440730]

約数ペア:

[(1, 18440730), (2, 9220365), (3, 6146910), (5, 3688146), (6, 3073455), (7, 2634390), (9, 2048970), (10, 1844073), (11, 1676430), (14, 1317195), (15, 1229382), (18, 1024485), (21, 878130), (22, 838215), (27, 682990), (30, 614691), (33, 558810), (35, 526878), (42, 439065), (45, 409794), (54, 341495), (55, 335286), (63, 292710), (66, 279405), (70, 263439), (77, 239490), (90, 204897), (99, 186270), (105, 175626), (110, 167643), (126, 146355), (135, 136598), (154, 119745), (165, 111762), (189, 97570), (198, 93135), (210, 87813), (231, 79830), (270, 68299), (297, 62090), (315, 58542), (330, 55881), (378, 48785), (385, 47898), (462, 39915), (495, 37254), (594, 31045), (630, 29271), (693, 26610), (770, 23949), (887, 20790), (945, 19514), (990, 18627), (1155, 15966), (1386, 13305), (1485, 12418), (1774, 10395), (1890, 9757), (2079, 8870), (2310, 7983), (2661, 6930), (2970, 6209), (3465, 5322), (4158, 4435)]