161830240

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{643}}^1$

素因数の和:693

約数の個数: 144

約数和(自身を含む): 453270384

約数和(自身を除く): 291440144

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 121, 130, 143, 160, 176, 208, 220, 242, 260, 286, 352, 416, 440, 484, 520, 572, 605, 643, 715, 880, 968, 1040, 1144, 1210, 1286, 1430, 1573, 1760, 1936, 2080, 2288, 2420, 2572, 2860, 3146, 3215, 3872, 4576, 4840, 5144, 5720, 6292, 6430, 7073, 7865, 8359, 9680, 10288, 11440, 12584, 12860, 14146, 15730, 16718, 19360, 20576, 22880, 25168, 25720, 28292, 31460, 33436, 35365, 41795, 50336, 51440, 56584, 62920, 66872, 70730, 77803, 83590, 91949, 102880, 113168, 125840, 133744, 141460, 155606, 167180, 183898, 226336, 251680, 267488, 282920, 311212, 334360, 367796, 389015, 459745, 565840, 622424, 668720, 735592, 778030, 919490, 1011439, 1131680, 1244848, 1337440, 1471184, 1556060, 1838980, 2022878, 2489696, 2942368, 3112120, 3677960, 4045756, 5057195, 6224240, 7355920, 8091512, 10114390, 12448480, 14711840, 16183024, 20228780, 32366048, 40457560, 80915120, 161830240]

約数ペア:

[(1, 161830240), (2, 80915120), (4, 40457560), (5, 32366048), (8, 20228780), (10, 16183024), (11, 14711840), (13, 12448480), (16, 10114390), (20, 8091512), (22, 7355920), (26, 6224240), (32, 5057195), (40, 4045756), (44, 3677960), (52, 3112120), (55, 2942368), (65, 2489696), (80, 2022878), (88, 1838980), (104, 1556060), (110, 1471184), (121, 1337440), (130, 1244848), (143, 1131680), (160, 1011439), (176, 919490), (208, 778030), (220, 735592), (242, 668720), (260, 622424), (286, 565840), (352, 459745), (416, 389015), (440, 367796), (484, 334360), (520, 311212), (572, 282920), (605, 267488), (643, 251680), (715, 226336), (880, 183898), (968, 167180), (1040, 155606), (1144, 141460), (1210, 133744), (1286, 125840), (1430, 113168), (1573, 102880), (1760, 91949), (1936, 83590), (2080, 77803), (2288, 70730), (2420, 66872), (2572, 62920), (2860, 56584), (3146, 51440), (3215, 50336), (3872, 41795), (4576, 35365), (4840, 33436), (5144, 31460), (5720, 28292), (6292, 25720), (6430, 25168), (7073, 22880), (7865, 20576), (8359, 19360), (9680, 16718), (10288, 15730), (11440, 14146), (12584, 12860)]