85706720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:289

約数の個数: 144

約数和(自身を含む): 235282320

約数和(自身を除く): 149575600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 76, 80, 88, 95, 110, 121, 152, 160, 176, 190, 209, 220, 233, 242, 304, 352, 380, 418, 440, 466, 484, 605, 608, 760, 836, 880, 932, 968, 1045, 1165, 1210, 1520, 1672, 1760, 1864, 1936, 2090, 2299, 2330, 2420, 2563, 3040, 3344, 3728, 3872, 4180, 4427, 4598, 4660, 4840, 5126, 6688, 7456, 8360, 8854, 9196, 9320, 9680, 10252, 11495, 12815, 16720, 17708, 18392, 18640, 19360, 20504, 22135, 22990, 25630, 28193, 33440, 35416, 36784, 37280, 41008, 44270, 45980, 48697, 51260, 56386, 70832, 73568, 82016, 88540, 91960, 97394, 102520, 112772, 140965, 141664, 177080, 183920, 194788, 205040, 225544, 243485, 281930, 354160, 367840, 389576, 410080, 451088, 486970, 535667, 563860, 708320, 779152, 902176, 973940, 1071334, 1127720, 1558304, 1947880, 2142668, 2255440, 2678335, 3895760, 4285336, 4510880, 5356670, 7791520, 8570672, 10713340, 17141344, 21426680, 42853360, 85706720]

約数ペア:

[(1, 85706720), (2, 42853360), (4, 21426680), (5, 17141344), (8, 10713340), (10, 8570672), (11, 7791520), (16, 5356670), (19, 4510880), (20, 4285336), (22, 3895760), (32, 2678335), (38, 2255440), (40, 2142668), (44, 1947880), (55, 1558304), (76, 1127720), (80, 1071334), (88, 973940), (95, 902176), (110, 779152), (121, 708320), (152, 563860), (160, 535667), (176, 486970), (190, 451088), (209, 410080), (220, 389576), (233, 367840), (242, 354160), (304, 281930), (352, 243485), (380, 225544), (418, 205040), (440, 194788), (466, 183920), (484, 177080), (605, 141664), (608, 140965), (760, 112772), (836, 102520), (880, 97394), (932, 91960), (968, 88540), (1045, 82016), (1165, 73568), (1210, 70832), (1520, 56386), (1672, 51260), (1760, 48697), (1864, 45980), (1936, 44270), (2090, 41008), (2299, 37280), (2330, 36784), (2420, 35416), (2563, 33440), (3040, 28193), (3344, 25630), (3728, 22990), (3872, 22135), (4180, 20504), (4427, 19360), (4598, 18640), (4660, 18392), (4840, 17708), (5126, 16720), (6688, 12815), (7456, 11495), (8360, 10252), (8854, 9680), (9196, 9320)]