905013890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:408

約数の個数: 128

約数和(自身を含む): 1988167680

約数和(自身を除く): 1083153790

約数列:

[1, 2, 5, 10, 11, 19, 22, 23, 38, 46, 55, 67, 95, 110, 115, 134, 190, 209, 230, 253, 281, 335, 418, 437, 506, 562, 670, 737, 874, 1045, 1265, 1273, 1405, 1474, 1541, 2090, 2185, 2530, 2546, 2810, 3082, 3091, 3685, 4370, 4807, 5339, 6182, 6365, 6463, 7370, 7705, 9614, 10678, 12730, 12926, 14003, 15410, 15455, 16951, 18827, 24035, 26695, 28006, 29279, 30910, 32315, 33902, 37654, 48070, 53390, 58558, 58729, 64630, 70015, 71093, 84755, 94135, 117458, 122797, 140030, 142186, 146395, 169510, 188270, 207097, 245594, 292790, 293645, 322069, 355465, 357713, 414194, 433021, 587290, 613985, 644138, 710930, 715426, 866042, 1035485, 1227970, 1350767, 1610345, 1788565, 2070970, 2165105, 2701534, 3220690, 3577130, 3934843, 4330210, 4763231, 6753835, 7869686, 8227399, 9526462, 13507670, 16454798, 19674215, 23816155, 39348430, 41136995, 47632310, 82273990, 90501389, 181002778, 452506945, 905013890]

約数ペア:

[(1, 905013890), (2, 452506945), (5, 181002778), (10, 90501389), (11, 82273990), (19, 47632310), (22, 41136995), (23, 39348430), (38, 23816155), (46, 19674215), (55, 16454798), (67, 13507670), (95, 9526462), (110, 8227399), (115, 7869686), (134, 6753835), (190, 4763231), (209, 4330210), (230, 3934843), (253, 3577130), (281, 3220690), (335, 2701534), (418, 2165105), (437, 2070970), (506, 1788565), (562, 1610345), (670, 1350767), (737, 1227970), (874, 1035485), (1045, 866042), (1265, 715426), (1273, 710930), (1405, 644138), (1474, 613985), (1541, 587290), (2090, 433021), (2185, 414194), (2530, 357713), (2546, 355465), (2810, 322069), (3082, 293645), (3091, 292790), (3685, 245594), (4370, 207097), (4807, 188270), (5339, 169510), (6182, 146395), (6365, 142186), (6463, 140030), (7370, 122797), (7705, 117458), (9614, 94135), (10678, 84755), (12730, 71093), (12926, 70015), (14003, 64630), (15410, 58729), (15455, 58558), (16951, 53390), (18827, 48070), (24035, 37654), (26695, 33902), (28006, 32315), (29279, 30910)]