20921465160

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{842249}}^1$

素因数の和:842292

約数の個数: 128

約数和(自身を含む): 72770400000

約数和(自身を除く): 51848934840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 90, 92, 108, 115, 120, 135, 138, 180, 184, 207, 216, 230, 270, 276, 345, 360, 414, 460, 540, 552, 621, 690, 828, 920, 1035, 1080, 1242, 1380, 1656, 2070, 2484, 2760, 3105, 4140, 4968, 6210, 8280, 12420, 24840, 842249, 1684498, 2526747, 3368996, 4211245, 5053494, 6737992, 7580241, 8422490, 10106988, 12633735, 15160482, 16844980, 19371727, 20213976, 22740723, 25267470, 30320964, 33689960, 37901205, 38743454, 45481446, 50534940, 58115181, 60641928, 75802410, 77486908, 90962892, 96858635, 101069880, 113703615, 116230362, 151604820, 154973816, 174345543, 181925784, 193717270, 227407230, 232460724, 290575905, 303209640, 348691086, 387434540, 454814460, 464921448, 523036629, 581151810, 697382172, 774869080, 871727715, 909628920, 1046073258, 1162303620, 1394764344, 1743455430, 2092146516, 2324607240, 2615183145, 3486910860, 4184293032, 5230366290, 6973821720, 10460732580, 20921465160]

約数ペア:

[(1, 20921465160), (2, 10460732580), (3, 6973821720), (4, 5230366290), (5, 4184293032), (6, 3486910860), (8, 2615183145), (9, 2324607240), (10, 2092146516), (12, 1743455430), (15, 1394764344), (18, 1162303620), (20, 1046073258), (23, 909628920), (24, 871727715), (27, 774869080), (30, 697382172), (36, 581151810), (40, 523036629), (45, 464921448), (46, 454814460), (54, 387434540), (60, 348691086), (69, 303209640), (72, 290575905), (90, 232460724), (92, 227407230), (108, 193717270), (115, 181925784), (120, 174345543), (135, 154973816), (138, 151604820), (180, 116230362), (184, 113703615), (207, 101069880), (216, 96858635), (230, 90962892), (270, 77486908), (276, 75802410), (345, 60641928), (360, 58115181), (414, 50534940), (460, 45481446), (540, 38743454), (552, 37901205), (621, 33689960), (690, 30320964), (828, 25267470), (920, 22740723), (1035, 20213976), (1080, 19371727), (1242, 16844980), (1380, 15160482), (1656, 12633735), (2070, 10106988), (2484, 8422490), (2760, 7580241), (3105, 6737992), (4140, 5053494), (4968, 4211245), (6210, 3368996), (8280, 2526747), (12420, 1684498), (24840, 842249)]