643552

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1$

素因数の和:60

約数の個数: 72

約数和(自身を含む): 1660176

約数和(自身を除く): 1016624

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 32, 34, 52, 56, 68, 91, 104, 112, 119, 136, 169, 182, 208, 221, 224, 238, 272, 338, 364, 416, 442, 476, 544, 676, 728, 884, 952, 1183, 1352, 1456, 1547, 1768, 1904, 2366, 2704, 2873, 2912, 3094, 3536, 3808, 4732, 5408, 5746, 6188, 7072, 9464, 11492, 12376, 18928, 20111, 22984, 24752, 37856, 40222, 45968, 49504, 80444, 91936, 160888, 321776, 643552]

約数ペア:

[(1, 643552), (2, 321776), (4, 160888), (7, 91936), (8, 80444), (13, 49504), (14, 45968), (16, 40222), (17, 37856), (26, 24752), (28, 22984), (32, 20111), (34, 18928), (52, 12376), (56, 11492), (68, 9464), (91, 7072), (104, 6188), (112, 5746), (119, 5408), (136, 4732), (169, 3808), (182, 3536), (208, 3094), (221, 2912), (224, 2873), (238, 2704), (272, 2366), (338, 1904), (364, 1768), (416, 1547), (442, 1456), (476, 1352), (544, 1183), (676, 952), (728, 884)]