640015936

素因数分解:

$2^6\times 7^1\times {\mathrm{37}}^1\times {\mathrm{38611}}^1$

素因数の和:38667

約数の個数: 56

約数和(自身を含む): 1490732096

約数和(自身を除く): 850716160

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 64, 74, 112, 148, 224, 259, 296, 448, 518, 592, 1036, 1184, 2072, 2368, 4144, 8288, 16576, 38611, 77222, 154444, 270277, 308888, 540554, 617776, 1081108, 1235552, 1428607, 2162216, 2471104, 2857214, 4324432, 5714428, 8648864, 10000249, 11428856, 17297728, 20000498, 22857712, 40000996, 45715424, 80001992, 91430848, 160003984, 320007968, 640015936]

約数ペア:

[(1, 640015936), (2, 320007968), (4, 160003984), (7, 91430848), (8, 80001992), (14, 45715424), (16, 40000996), (28, 22857712), (32, 20000498), (37, 17297728), (56, 11428856), (64, 10000249), (74, 8648864), (112, 5714428), (148, 4324432), (224, 2857214), (259, 2471104), (296, 2162216), (448, 1428607), (518, 1235552), (592, 1081108), (1036, 617776), (1184, 540554), (2072, 308888), (2368, 270277), (4144, 154444), (8288, 77222), (16576, 38611)]