644784

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:138

約数の個数: 80

約数和(自身を含む): 2023680

約数和(自身を除く): 1378896

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 38, 42, 48, 56, 57, 76, 84, 101, 112, 114, 133, 152, 168, 202, 228, 266, 303, 304, 336, 399, 404, 456, 532, 606, 707, 798, 808, 912, 1064, 1212, 1414, 1596, 1616, 1919, 2121, 2128, 2424, 2828, 3192, 3838, 4242, 4848, 5656, 5757, 6384, 7676, 8484, 11312, 11514, 13433, 15352, 16968, 23028, 26866, 30704, 33936, 40299, 46056, 53732, 80598, 92112, 107464, 161196, 214928, 322392, 644784]

約数ペア:

[(1, 644784), (2, 322392), (3, 214928), (4, 161196), (6, 107464), (7, 92112), (8, 80598), (12, 53732), (14, 46056), (16, 40299), (19, 33936), (21, 30704), (24, 26866), (28, 23028), (38, 16968), (42, 15352), (48, 13433), (56, 11514), (57, 11312), (76, 8484), (84, 7676), (101, 6384), (112, 5757), (114, 5656), (133, 4848), (152, 4242), (168, 3838), (202, 3192), (228, 2828), (266, 2424), (303, 2128), (304, 2121), (336, 1919), (399, 1616), (404, 1596), (456, 1414), (532, 1212), (606, 1064), (707, 912), (798, 808)]