172901960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{769}}^1$

素因数の和:871

約数の個数: 128

約数和(自身を含む): 492307200

約数和(自身を除く): 319405240

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 73, 77, 88, 110, 140, 146, 154, 220, 280, 292, 308, 365, 385, 440, 511, 584, 616, 730, 769, 770, 803, 1022, 1460, 1538, 1540, 1606, 2044, 2555, 2920, 3076, 3080, 3212, 3845, 4015, 4088, 5110, 5383, 5621, 6152, 6424, 7690, 8030, 8459, 10220, 10766, 11242, 15380, 16060, 16918, 20440, 21532, 22484, 26915, 28105, 30760, 32120, 33836, 42295, 43064, 44968, 53830, 56137, 56210, 59213, 67672, 84590, 107660, 112274, 112420, 118426, 169180, 215320, 224548, 224840, 236852, 280685, 296065, 338360, 392959, 449096, 473704, 561370, 592130, 617507, 785918, 1122740, 1184260, 1235014, 1571836, 1964795, 2245480, 2368520, 2470028, 3087535, 3143672, 3929590, 4322549, 4940056, 6175070, 7859180, 8645098, 12350140, 15718360, 17290196, 21612745, 24700280, 34580392, 43225490, 86450980, 172901960]

約数ペア:

[(1, 172901960), (2, 86450980), (4, 43225490), (5, 34580392), (7, 24700280), (8, 21612745), (10, 17290196), (11, 15718360), (14, 12350140), (20, 8645098), (22, 7859180), (28, 6175070), (35, 4940056), (40, 4322549), (44, 3929590), (55, 3143672), (56, 3087535), (70, 2470028), (73, 2368520), (77, 2245480), (88, 1964795), (110, 1571836), (140, 1235014), (146, 1184260), (154, 1122740), (220, 785918), (280, 617507), (292, 592130), (308, 561370), (365, 473704), (385, 449096), (440, 392959), (511, 338360), (584, 296065), (616, 280685), (730, 236852), (769, 224840), (770, 224548), (803, 215320), (1022, 169180), (1460, 118426), (1538, 112420), (1540, 112274), (1606, 107660), (2044, 84590), (2555, 67672), (2920, 59213), (3076, 56210), (3080, 56137), (3212, 53830), (3845, 44968), (4015, 43064), (4088, 42295), (5110, 33836), (5383, 32120), (5621, 30760), (6152, 28105), (6424, 26915), (7690, 22484), (8030, 21532), (8459, 20440), (10220, 16918), (10766, 16060), (11242, 15380)]