305905520

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{173}}^1$

素因数の和:271

約数の個数: 120

約数和(自身を含む): 771298848

約数和(自身を除く): 465393328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 40, 46, 62, 80, 92, 115, 124, 155, 173, 184, 230, 248, 310, 346, 368, 460, 496, 620, 692, 713, 865, 920, 961, 1240, 1384, 1426, 1730, 1840, 1922, 2480, 2768, 2852, 3460, 3565, 3844, 3979, 4805, 5363, 5704, 6920, 7130, 7688, 7958, 9610, 10726, 11408, 13840, 14260, 15376, 15916, 19220, 19895, 21452, 22103, 26815, 28520, 31832, 38440, 39790, 42904, 44206, 53630, 57040, 63664, 76880, 79580, 85808, 88412, 107260, 110515, 123349, 159160, 166253, 176824, 214520, 221030, 246698, 318320, 332506, 353648, 429040, 442060, 493396, 616745, 665012, 831265, 884120, 986792, 1233490, 1330024, 1662530, 1768240, 1973584, 2466980, 2660048, 3325060, 3823819, 4933960, 6650120, 7647638, 9867920, 13300240, 15295276, 19119095, 30590552, 38238190, 61181104, 76476380, 152952760, 305905520]

約数ペア:

[(1, 305905520), (2, 152952760), (4, 76476380), (5, 61181104), (8, 38238190), (10, 30590552), (16, 19119095), (20, 15295276), (23, 13300240), (31, 9867920), (40, 7647638), (46, 6650120), (62, 4933960), (80, 3823819), (92, 3325060), (115, 2660048), (124, 2466980), (155, 1973584), (173, 1768240), (184, 1662530), (230, 1330024), (248, 1233490), (310, 986792), (346, 884120), (368, 831265), (460, 665012), (496, 616745), (620, 493396), (692, 442060), (713, 429040), (865, 353648), (920, 332506), (961, 318320), (1240, 246698), (1384, 221030), (1426, 214520), (1730, 176824), (1840, 166253), (1922, 159160), (2480, 123349), (2768, 110515), (2852, 107260), (3460, 88412), (3565, 85808), (3844, 79580), (3979, 76880), (4805, 63664), (5363, 57040), (5704, 53630), (6920, 44206), (7130, 42904), (7688, 39790), (7958, 38440), (9610, 31832), (10726, 28520), (11408, 26815), (13840, 22103), (14260, 21452), (15376, 19895), (15916, 19220)]