20011968

素因数分解:

$2^6\times 3^3\times {\mathrm{37}}^1\times {\mathrm{313}}^1$

素因数の和:371

約数の個数: 112

約数和(自身を含む): 60614560

約数和(自身を除く): 40602592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 37, 48, 54, 64, 72, 74, 96, 108, 111, 144, 148, 192, 216, 222, 288, 296, 313, 333, 432, 444, 576, 592, 626, 666, 864, 888, 939, 999, 1184, 1252, 1332, 1728, 1776, 1878, 1998, 2368, 2504, 2664, 2817, 3552, 3756, 3996, 5008, 5328, 5634, 7104, 7512, 7992, 8451, 10016, 10656, 11268, 11581, 15024, 15984, 16902, 20032, 21312, 22536, 23162, 30048, 31968, 33804, 34743, 45072, 46324, 60096, 63936, 67608, 69486, 90144, 92648, 104229, 135216, 138972, 180288, 185296, 208458, 270432, 277944, 312687, 370592, 416916, 540864, 555888, 625374, 741184, 833832, 1111776, 1250748, 1667664, 2223552, 2501496, 3335328, 5002992, 6670656, 10005984, 20011968]

約数ペア:

[(1, 20011968), (2, 10005984), (3, 6670656), (4, 5002992), (6, 3335328), (8, 2501496), (9, 2223552), (12, 1667664), (16, 1250748), (18, 1111776), (24, 833832), (27, 741184), (32, 625374), (36, 555888), (37, 540864), (48, 416916), (54, 370592), (64, 312687), (72, 277944), (74, 270432), (96, 208458), (108, 185296), (111, 180288), (144, 138972), (148, 135216), (192, 104229), (216, 92648), (222, 90144), (288, 69486), (296, 67608), (313, 63936), (333, 60096), (432, 46324), (444, 45072), (576, 34743), (592, 33804), (626, 31968), (666, 30048), (864, 23162), (888, 22536), (939, 21312), (999, 20032), (1184, 16902), (1252, 15984), (1332, 15024), (1728, 11581), (1776, 11268), (1878, 10656), (1998, 10016), (2368, 8451), (2504, 7992), (2664, 7512), (2817, 7104), (3552, 5634), (3756, 5328), (3996, 5008)]