18965375744

素因数分解:

$2^8\times 7^1\times {\mathrm{223}}^1\times {\mathrm{47459}}^1$

素因数の和:47705

約数の個数: 72

約数和(自身を含む): 43459691520

約数和(自身を除く): 24494315776

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 223, 224, 256, 446, 448, 892, 896, 1561, 1784, 1792, 3122, 3568, 6244, 7136, 12488, 14272, 24976, 28544, 47459, 49952, 57088, 94918, 99904, 189836, 199808, 332213, 379672, 399616, 664426, 759344, 1328852, 1518688, 2657704, 3037376, 5315408, 6074752, 10583357, 10630816, 12149504, 21166714, 21261632, 42333428, 42523264, 74083499, 84666856, 85046528, 148166998, 169333712, 296333996, 338667424, 592667992, 677334848, 1185335984, 1354669696, 2370671968, 2709339392, 4741343936, 9482687872, 18965375744]

約数ペア:

[(1, 18965375744), (2, 9482687872), (4, 4741343936), (7, 2709339392), (8, 2370671968), (14, 1354669696), (16, 1185335984), (28, 677334848), (32, 592667992), (56, 338667424), (64, 296333996), (112, 169333712), (128, 148166998), (223, 85046528), (224, 84666856), (256, 74083499), (446, 42523264), (448, 42333428), (892, 21261632), (896, 21166714), (1561, 12149504), (1784, 10630816), (1792, 10583357), (3122, 6074752), (3568, 5315408), (6244, 3037376), (7136, 2657704), (12488, 1518688), (14272, 1328852), (24976, 759344), (28544, 664426), (47459, 399616), (49952, 379672), (57088, 332213), (94918, 199808), (99904, 189836)]