18867751552

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1\times {\mathrm{1171}}^1$

素因数の和:1642

約数の個数: 128

約数和(自身を含む): 42375957120

約数和(自身を除く): 23508205568

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 52, 64, 92, 104, 128, 184, 208, 299, 368, 416, 421, 598, 736, 832, 842, 1171, 1196, 1472, 1664, 1684, 2342, 2392, 2944, 3368, 4684, 4784, 5473, 6736, 9368, 9568, 9683, 10946, 13472, 15223, 18736, 19136, 19366, 21892, 26933, 26944, 30446, 37472, 38272, 38732, 43784, 53866, 53888, 60892, 74944, 77464, 87568, 107732, 121784, 125879, 149888, 154928, 175136, 215464, 243568, 251758, 309856, 350129, 350272, 430928, 487136, 492991, 503516, 619712, 700258, 700544, 861856, 974272, 985982, 1007032, 1239424, 1400516, 1723712, 1948544, 1971964, 2014064, 2801032, 3447424, 3943928, 4028128, 5602064, 6408883, 7887856, 8056256, 11204128, 11338793, 12817766, 15775712, 16112512, 22408256, 22677586, 25635532, 31551424, 44816512, 45355172, 51271064, 63102848, 90710344, 102542128, 147404309, 181420688, 205084256, 294808618, 362841376, 410168512, 589617236, 725682752, 820337024, 1179234472, 1451365504, 2358468944, 4716937888, 9433875776, 18867751552]

約数ペア:

[(1, 18867751552), (2, 9433875776), (4, 4716937888), (8, 2358468944), (13, 1451365504), (16, 1179234472), (23, 820337024), (26, 725682752), (32, 589617236), (46, 410168512), (52, 362841376), (64, 294808618), (92, 205084256), (104, 181420688), (128, 147404309), (184, 102542128), (208, 90710344), (299, 63102848), (368, 51271064), (416, 45355172), (421, 44816512), (598, 31551424), (736, 25635532), (832, 22677586), (842, 22408256), (1171, 16112512), (1196, 15775712), (1472, 12817766), (1664, 11338793), (1684, 11204128), (2342, 8056256), (2392, 7887856), (2944, 6408883), (3368, 5602064), (4684, 4028128), (4784, 3943928), (5473, 3447424), (6736, 2801032), (9368, 2014064), (9568, 1971964), (9683, 1948544), (10946, 1723712), (13472, 1400516), (15223, 1239424), (18736, 1007032), (19136, 985982), (19366, 974272), (21892, 861856), (26933, 700544), (26944, 700258), (30446, 619712), (37472, 503516), (38272, 492991), (38732, 487136), (43784, 430928), (53866, 350272), (53888, 350129), (60892, 309856), (74944, 251758), (77464, 243568), (87568, 215464), (107732, 175136), (121784, 154928), (125879, 149888)]