131613440

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:462

約数の個数: 144

約数和(自身を含む): 370961472

約数和(自身を除く): 239348032

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 64, 70, 74, 80, 112, 128, 140, 148, 160, 185, 224, 256, 259, 280, 296, 320, 370, 397, 448, 518, 560, 592, 640, 740, 794, 896, 1036, 1120, 1184, 1280, 1295, 1480, 1588, 1792, 1985, 2072, 2240, 2368, 2590, 2779, 2960, 3176, 3970, 4144, 4480, 4736, 5180, 5558, 5920, 6352, 7940, 8288, 8960, 9472, 10360, 11116, 11840, 12704, 13895, 14689, 15880, 16576, 20720, 22232, 23680, 25408, 27790, 29378, 31760, 33152, 41440, 44464, 47360, 50816, 55580, 58756, 63520, 66304, 73445, 82880, 88928, 101632, 102823, 111160, 117512, 127040, 146890, 165760, 177856, 205646, 222320, 235024, 254080, 293780, 331520, 355712, 411292, 444640, 470048, 508160, 514115, 587560, 711424, 822584, 889280, 940096, 1028230, 1175120, 1645168, 1778560, 1880192, 2056460, 2350240, 3290336, 3557120, 3760384, 4112920, 4700480, 6580672, 8225840, 9400960, 13161344, 16451680, 18801920, 26322688, 32903360, 65806720, 131613440]

約数ペア:

[(1, 131613440), (2, 65806720), (4, 32903360), (5, 26322688), (7, 18801920), (8, 16451680), (10, 13161344), (14, 9400960), (16, 8225840), (20, 6580672), (28, 4700480), (32, 4112920), (35, 3760384), (37, 3557120), (40, 3290336), (56, 2350240), (64, 2056460), (70, 1880192), (74, 1778560), (80, 1645168), (112, 1175120), (128, 1028230), (140, 940096), (148, 889280), (160, 822584), (185, 711424), (224, 587560), (256, 514115), (259, 508160), (280, 470048), (296, 444640), (320, 411292), (370, 355712), (397, 331520), (448, 293780), (518, 254080), (560, 235024), (592, 222320), (640, 205646), (740, 177856), (794, 165760), (896, 146890), (1036, 127040), (1120, 117512), (1184, 111160), (1280, 102823), (1295, 101632), (1480, 88928), (1588, 82880), (1792, 73445), (1985, 66304), (2072, 63520), (2240, 58756), (2368, 55580), (2590, 50816), (2779, 47360), (2960, 44464), (3176, 41440), (3970, 33152), (4144, 31760), (4480, 29378), (4736, 27790), (5180, 25408), (5558, 23680), (5920, 22232), (6352, 20720), (7940, 16576), (8288, 15880), (8960, 14689), (9472, 13895), (10360, 12704), (11116, 11840)]