20821632

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:170

約数の個数: 128

約数和(自身を含む): 61575360

約数和(自身を除く): 40753728

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 43, 48, 52, 64, 78, 86, 96, 97, 104, 128, 129, 156, 172, 192, 194, 208, 258, 291, 312, 344, 384, 388, 416, 516, 559, 582, 624, 688, 776, 832, 1032, 1118, 1164, 1248, 1261, 1376, 1552, 1664, 1677, 2064, 2236, 2328, 2496, 2522, 2752, 3104, 3354, 3783, 4128, 4171, 4472, 4656, 4992, 5044, 5504, 6208, 6708, 7566, 8256, 8342, 8944, 9312, 10088, 12416, 12513, 13416, 15132, 16512, 16684, 17888, 18624, 20176, 25026, 26832, 30264, 33368, 35776, 37248, 40352, 50052, 53664, 54223, 60528, 66736, 71552, 80704, 100104, 107328, 108446, 121056, 133472, 161408, 162669, 200208, 214656, 216892, 242112, 266944, 325338, 400416, 433784, 484224, 533888, 650676, 800832, 867568, 1301352, 1601664, 1735136, 2602704, 3470272, 5205408, 6940544, 10410816, 20821632]

約数ペア:

[(1, 20821632), (2, 10410816), (3, 6940544), (4, 5205408), (6, 3470272), (8, 2602704), (12, 1735136), (13, 1601664), (16, 1301352), (24, 867568), (26, 800832), (32, 650676), (39, 533888), (43, 484224), (48, 433784), (52, 400416), (64, 325338), (78, 266944), (86, 242112), (96, 216892), (97, 214656), (104, 200208), (128, 162669), (129, 161408), (156, 133472), (172, 121056), (192, 108446), (194, 107328), (208, 100104), (258, 80704), (291, 71552), (312, 66736), (344, 60528), (384, 54223), (388, 53664), (416, 50052), (516, 40352), (559, 37248), (582, 35776), (624, 33368), (688, 30264), (776, 26832), (832, 25026), (1032, 20176), (1118, 18624), (1164, 17888), (1248, 16684), (1261, 16512), (1376, 15132), (1552, 13416), (1664, 12513), (1677, 12416), (2064, 10088), (2236, 9312), (2328, 8944), (2496, 8342), (2522, 8256), (2752, 7566), (3104, 6708), (3354, 6208), (3783, 5504), (4128, 5044), (4171, 4992), (4472, 4656)]