664741688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{1453}}^1$

素因数の和:1608

約数の個数: 64

約数和(自身を含む): 1385022240

約数和(自身を除く): 720280552

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 83, 104, 106, 166, 212, 332, 424, 664, 689, 1079, 1378, 1453, 2158, 2756, 2906, 4316, 4399, 5512, 5812, 8632, 8798, 11624, 17596, 18889, 35192, 37778, 57187, 75556, 77009, 114374, 120599, 151112, 154018, 228748, 241198, 308036, 457496, 482396, 616072, 964792, 1001117, 1567787, 2002234, 3135574, 4004468, 6271148, 6391747, 8008936, 12542296, 12783494, 25566988, 51133976, 83092711, 166185422, 332370844, 664741688]

約数ペア:

[(1, 664741688), (2, 332370844), (4, 166185422), (8, 83092711), (13, 51133976), (26, 25566988), (52, 12783494), (53, 12542296), (83, 8008936), (104, 6391747), (106, 6271148), (166, 4004468), (212, 3135574), (332, 2002234), (424, 1567787), (664, 1001117), (689, 964792), (1079, 616072), (1378, 482396), (1453, 457496), (2158, 308036), (2756, 241198), (2906, 228748), (4316, 154018), (4399, 151112), (5512, 120599), (5812, 114374), (8632, 77009), (8798, 75556), (11624, 57187), (17596, 37778), (18889, 35192)]