161871240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{263}}^1$

素因数の和:523

約数の個数: 128

約数和(自身を含む): 510935040

約数和(自身を除く): 349063800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 223, 230, 263, 276, 345, 446, 460, 526, 552, 669, 690, 789, 892, 920, 1052, 1115, 1315, 1338, 1380, 1578, 1784, 2104, 2230, 2630, 2676, 2760, 3156, 3345, 3945, 4460, 5129, 5260, 5352, 6049, 6312, 6690, 7890, 8920, 10258, 10520, 12098, 13380, 15387, 15780, 18147, 20516, 24196, 25645, 26760, 30245, 30774, 31560, 36294, 41032, 48392, 51290, 58649, 60490, 61548, 72588, 76935, 90735, 102580, 117298, 120980, 123096, 145176, 153870, 175947, 181470, 205160, 234596, 241960, 293245, 307740, 351894, 362940, 469192, 586490, 615480, 703788, 725880, 879735, 1172980, 1348927, 1407576, 1759470, 2345960, 2697854, 3518940, 4046781, 5395708, 6744635, 7037880, 8093562, 10791416, 13489270, 16187124, 20233905, 26978540, 32374248, 40467810, 53957080, 80935620, 161871240]

約数ペア:

[(1, 161871240), (2, 80935620), (3, 53957080), (4, 40467810), (5, 32374248), (6, 26978540), (8, 20233905), (10, 16187124), (12, 13489270), (15, 10791416), (20, 8093562), (23, 7037880), (24, 6744635), (30, 5395708), (40, 4046781), (46, 3518940), (60, 2697854), (69, 2345960), (92, 1759470), (115, 1407576), (120, 1348927), (138, 1172980), (184, 879735), (223, 725880), (230, 703788), (263, 615480), (276, 586490), (345, 469192), (446, 362940), (460, 351894), (526, 307740), (552, 293245), (669, 241960), (690, 234596), (789, 205160), (892, 181470), (920, 175947), (1052, 153870), (1115, 145176), (1315, 123096), (1338, 120980), (1380, 117298), (1578, 102580), (1784, 90735), (2104, 76935), (2230, 72588), (2630, 61548), (2676, 60490), (2760, 58649), (3156, 51290), (3345, 48392), (3945, 41032), (4460, 36294), (5129, 31560), (5260, 30774), (5352, 30245), (6049, 26760), (6312, 25645), (6690, 24196), (7890, 20516), (8920, 18147), (10258, 15780), (10520, 15387), (12098, 13380)]