20928528

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:197

約数の個数: 120

約数和(自身を含む): 62674560

約数和(自身を除く): 41746032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 36, 46, 48, 69, 71, 72, 89, 92, 138, 142, 144, 178, 184, 207, 213, 267, 276, 284, 356, 368, 414, 426, 534, 552, 568, 639, 712, 801, 828, 852, 1068, 1104, 1136, 1278, 1424, 1602, 1633, 1656, 1704, 2047, 2136, 2556, 3204, 3266, 3312, 3408, 4094, 4272, 4899, 5112, 6141, 6319, 6408, 6532, 8188, 9798, 10224, 12282, 12638, 12816, 13064, 14697, 16376, 18423, 18957, 19596, 24564, 25276, 26128, 29394, 32752, 36846, 37914, 39192, 49128, 50552, 56871, 58788, 73692, 75828, 78384, 98256, 101104, 113742, 117576, 145337, 147384, 151656, 227484, 235152, 290674, 294768, 303312, 436011, 454968, 581348, 872022, 909936, 1162696, 1308033, 1744044, 2325392, 2616066, 3488088, 5232132, 6976176, 10464264, 20928528]

約数ペア:

[(1, 20928528), (2, 10464264), (3, 6976176), (4, 5232132), (6, 3488088), (8, 2616066), (9, 2325392), (12, 1744044), (16, 1308033), (18, 1162696), (23, 909936), (24, 872022), (36, 581348), (46, 454968), (48, 436011), (69, 303312), (71, 294768), (72, 290674), (89, 235152), (92, 227484), (138, 151656), (142, 147384), (144, 145337), (178, 117576), (184, 113742), (207, 101104), (213, 98256), (267, 78384), (276, 75828), (284, 73692), (356, 58788), (368, 56871), (414, 50552), (426, 49128), (534, 39192), (552, 37914), (568, 36846), (639, 32752), (712, 29394), (801, 26128), (828, 25276), (852, 24564), (1068, 19596), (1104, 18957), (1136, 18423), (1278, 16376), (1424, 14697), (1602, 13064), (1633, 12816), (1656, 12638), (1704, 12282), (2047, 10224), (2136, 9798), (2556, 8188), (3204, 6532), (3266, 6408), (3312, 6319), (3408, 6141), (4094, 5112), (4272, 4899)]