209439256

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:404

約数の個数: 64

約数和(自身を含む): 433198080

約数和(自身を除く): 223758824

約数列:

[1, 2, 4, 8, 13, 26, 52, 101, 104, 127, 157, 202, 254, 314, 404, 508, 628, 808, 1016, 1256, 1313, 1651, 2041, 2626, 3302, 4082, 5252, 6604, 8164, 10504, 12827, 13208, 15857, 16328, 19939, 25654, 31714, 39878, 51308, 63428, 79756, 102616, 126856, 159512, 166751, 206141, 259207, 333502, 412282, 518414, 667004, 824564, 1036828, 1334008, 1649128, 2013839, 2073656, 4027678, 8055356, 16110712, 26179907, 52359814, 104719628, 209439256]

約数ペア:

[(1, 209439256), (2, 104719628), (4, 52359814), (8, 26179907), (13, 16110712), (26, 8055356), (52, 4027678), (101, 2073656), (104, 2013839), (127, 1649128), (157, 1334008), (202, 1036828), (254, 824564), (314, 667004), (404, 518414), (508, 412282), (628, 333502), (808, 259207), (1016, 206141), (1256, 166751), (1313, 159512), (1651, 126856), (2041, 102616), (2626, 79756), (3302, 63428), (4082, 51308), (5252, 39878), (6604, 31714), (8164, 25654), (10504, 19939), (12827, 16328), (13208, 15857)]