28713230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 64350720

約数和(自身を除く): 35637490

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 139, 182, 227, 278, 454, 455, 695, 910, 973, 1135, 1390, 1589, 1807, 1946, 2270, 2951, 3178, 3614, 4865, 5902, 7945, 9035, 9730, 12649, 14755, 15890, 18070, 20657, 25298, 29510, 31553, 41314, 63106, 63245, 103285, 126490, 157765, 206570, 220871, 315530, 410189, 441742, 820378, 1104355, 2050945, 2208710, 2871323, 4101890, 5742646, 14356615, 28713230]

約数ペア:

[(1, 28713230), (2, 14356615), (5, 5742646), (7, 4101890), (10, 2871323), (13, 2208710), (14, 2050945), (26, 1104355), (35, 820378), (65, 441742), (70, 410189), (91, 315530), (130, 220871), (139, 206570), (182, 157765), (227, 126490), (278, 103285), (454, 63245), (455, 63106), (695, 41314), (910, 31553), (973, 29510), (1135, 25298), (1390, 20657), (1589, 18070), (1807, 15890), (1946, 14755), (2270, 12649), (2951, 9730), (3178, 9035), (3614, 7945), (4865, 5902)]