39981760

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1373}}^1$

素因数の和:1410

約数の個数: 112

約数和(自身を含む): 117262656

約数和(自身を除く): 77280896

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 560, 728, 832, 910, 1040, 1120, 1373, 1456, 1820, 2080, 2240, 2746, 2912, 3640, 4160, 5492, 5824, 6865, 7280, 9611, 10984, 13730, 14560, 17849, 19222, 21968, 27460, 29120, 35698, 38444, 43936, 48055, 54920, 71396, 76888, 87872, 89245, 96110, 109840, 124943, 142792, 153776, 178490, 192220, 219680, 249886, 285584, 307552, 356980, 384440, 439360, 499772, 571168, 615104, 624715, 713960, 768880, 999544, 1142336, 1249430, 1427920, 1537760, 1999088, 2498860, 2855840, 3075520, 3998176, 4997720, 5711680, 7996352, 9995440, 19990880, 39981760]

約数ペア:

[(1, 39981760), (2, 19990880), (4, 9995440), (5, 7996352), (7, 5711680), (8, 4997720), (10, 3998176), (13, 3075520), (14, 2855840), (16, 2498860), (20, 1999088), (26, 1537760), (28, 1427920), (32, 1249430), (35, 1142336), (40, 999544), (52, 768880), (56, 713960), (64, 624715), (65, 615104), (70, 571168), (80, 499772), (91, 439360), (104, 384440), (112, 356980), (130, 307552), (140, 285584), (160, 249886), (182, 219680), (208, 192220), (224, 178490), (260, 153776), (280, 142792), (320, 124943), (364, 109840), (416, 96110), (448, 89245), (455, 87872), (520, 76888), (560, 71396), (728, 54920), (832, 48055), (910, 43936), (1040, 38444), (1120, 35698), (1373, 29120), (1456, 27460), (1820, 21968), (2080, 19222), (2240, 17849), (2746, 14560), (2912, 13730), (3640, 10984), (4160, 9611), (5492, 7280), (5824, 6865)]