81981480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{5741}}^1$

素因数の和:5779

約数の個数: 128

約数和(自身を含む): 297665280

約数和(自身を除く): 215683800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1785, 2040, 2380, 2856, 3570, 4760, 5741, 7140, 11482, 14280, 17223, 22964, 28705, 34446, 40187, 45928, 57410, 68892, 80374, 86115, 97597, 114820, 120561, 137784, 160748, 172230, 195194, 200935, 229640, 241122, 292791, 321496, 344460, 390388, 401870, 482244, 487985, 585582, 602805, 683179, 688920, 780776, 803740, 964488, 975970, 1171164, 1205610, 1366358, 1463955, 1607480, 1951940, 2049537, 2342328, 2411220, 2732716, 2927910, 3415895, 3903880, 4099074, 4822440, 5465432, 5855820, 6831790, 8198148, 10247685, 11711640, 13663580, 16396296, 20495370, 27327160, 40990740, 81981480]

約数ペア:

[(1, 81981480), (2, 40990740), (3, 27327160), (4, 20495370), (5, 16396296), (6, 13663580), (7, 11711640), (8, 10247685), (10, 8198148), (12, 6831790), (14, 5855820), (15, 5465432), (17, 4822440), (20, 4099074), (21, 3903880), (24, 3415895), (28, 2927910), (30, 2732716), (34, 2411220), (35, 2342328), (40, 2049537), (42, 1951940), (51, 1607480), (56, 1463955), (60, 1366358), (68, 1205610), (70, 1171164), (84, 975970), (85, 964488), (102, 803740), (105, 780776), (119, 688920), (120, 683179), (136, 602805), (140, 585582), (168, 487985), (170, 482244), (204, 401870), (210, 390388), (238, 344460), (255, 321496), (280, 292791), (340, 241122), (357, 229640), (408, 200935), (420, 195194), (476, 172230), (510, 160748), (595, 137784), (680, 120561), (714, 114820), (840, 97597), (952, 86115), (1020, 80374), (1190, 68892), (1428, 57410), (1785, 45928), (2040, 40187), (2380, 34446), (2856, 28705), (3570, 22964), (4760, 17223), (5741, 14280), (7140, 11482)]