20970659968

素因数分解:

$2^7\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{29209}}^1$

素因数の和:29373

約数の個数: 64

約数和(自身を含む): 42903648000

約数和(自身を除く): 21932988032

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 79, 128, 142, 158, 284, 316, 568, 632, 1136, 1264, 2272, 2528, 4544, 5056, 5609, 9088, 10112, 11218, 22436, 29209, 44872, 58418, 89744, 116836, 179488, 233672, 358976, 467344, 717952, 934688, 1869376, 2073839, 2307511, 3738752, 4147678, 4615022, 8295356, 9230044, 16590712, 18460088, 33181424, 36920176, 66362848, 73840352, 132725696, 147680704, 163833281, 265451392, 295361408, 327666562, 655333124, 1310666248, 2621332496, 5242664992, 10485329984, 20970659968]

約数ペア:

[(1, 20970659968), (2, 10485329984), (4, 5242664992), (8, 2621332496), (16, 1310666248), (32, 655333124), (64, 327666562), (71, 295361408), (79, 265451392), (128, 163833281), (142, 147680704), (158, 132725696), (284, 73840352), (316, 66362848), (568, 36920176), (632, 33181424), (1136, 18460088), (1264, 16590712), (2272, 9230044), (2528, 8295356), (4544, 4615022), (5056, 4147678), (5609, 3738752), (9088, 2307511), (10112, 2073839), (11218, 1869376), (22436, 934688), (29209, 717952), (44872, 467344), (58418, 358976), (89744, 233672), (116836, 179488)]