20921519072

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{10303}}^1$

素因数の和:10456

約数の個数: 96

約数和(自身を含む): 44869386240

約数和(自身を除く): 23947867168

約数列:

[1, 2, 4, 8, 16, 23, 31, 32, 46, 62, 89, 92, 124, 178, 184, 248, 356, 368, 496, 712, 713, 736, 992, 1424, 1426, 2047, 2759, 2848, 2852, 4094, 5518, 5704, 8188, 10303, 11036, 11408, 16376, 20606, 22072, 22816, 32752, 41212, 44144, 63457, 65504, 82424, 88288, 126914, 164848, 236969, 253828, 319393, 329696, 473938, 507656, 638786, 916967, 947876, 1015312, 1277572, 1833934, 1895752, 2030624, 2555144, 3667868, 3791504, 5110288, 7335736, 7346039, 7583008, 10220576, 14671472, 14692078, 21090241, 28425977, 29342944, 29384156, 42180482, 56851954, 58768312, 84360964, 113703908, 117536624, 168721928, 227407816, 235073248, 337443856, 454815632, 653797471, 674887712, 909631264, 1307594942, 2615189884, 5230379768, 10460759536, 20921519072]

約数ペア:

[(1, 20921519072), (2, 10460759536), (4, 5230379768), (8, 2615189884), (16, 1307594942), (23, 909631264), (31, 674887712), (32, 653797471), (46, 454815632), (62, 337443856), (89, 235073248), (92, 227407816), (124, 168721928), (178, 117536624), (184, 113703908), (248, 84360964), (356, 58768312), (368, 56851954), (496, 42180482), (712, 29384156), (713, 29342944), (736, 28425977), (992, 21090241), (1424, 14692078), (1426, 14671472), (2047, 10220576), (2759, 7583008), (2848, 7346039), (2852, 7335736), (4094, 5110288), (5518, 3791504), (5704, 3667868), (8188, 2555144), (10303, 2030624), (11036, 1895752), (11408, 1833934), (16376, 1277572), (20606, 1015312), (22072, 947876), (22816, 916967), (32752, 638786), (41212, 507656), (44144, 473938), (63457, 329696), (65504, 319393), (82424, 253828), (88288, 236969), (126914, 164848)]