191217920

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:192

約数の個数: 144

約数和(自身を含む): 486635520

約数和(自身を除く): 295417600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 61, 62, 64, 79, 80, 122, 124, 128, 155, 158, 160, 244, 248, 256, 305, 310, 316, 320, 395, 488, 496, 610, 620, 632, 640, 790, 976, 992, 1220, 1240, 1264, 1280, 1580, 1891, 1952, 1984, 2440, 2449, 2480, 2528, 3160, 3782, 3904, 3968, 4819, 4880, 4898, 4960, 5056, 6320, 7564, 7808, 7936, 9455, 9638, 9760, 9796, 9920, 10112, 12245, 12640, 15128, 15616, 18910, 19276, 19520, 19592, 19840, 20224, 24095, 24490, 25280, 30256, 37820, 38552, 39040, 39184, 39680, 48190, 48980, 50560, 60512, 75640, 77104, 78080, 78368, 96380, 97960, 101120, 121024, 149389, 151280, 154208, 156736, 192760, 195920, 242048, 298778, 302560, 308416, 313472, 385520, 391840, 484096, 597556, 605120, 616832, 626944, 746945, 771040, 783680, 1195112, 1210240, 1233664, 1493890, 1542080, 1567360, 2390224, 2420480, 2987780, 3084160, 3134720, 4780448, 5975560, 6168320, 9560896, 11951120, 19121792, 23902240, 38243584, 47804480, 95608960, 191217920]

約数ペア:

[(1, 191217920), (2, 95608960), (4, 47804480), (5, 38243584), (8, 23902240), (10, 19121792), (16, 11951120), (20, 9560896), (31, 6168320), (32, 5975560), (40, 4780448), (61, 3134720), (62, 3084160), (64, 2987780), (79, 2420480), (80, 2390224), (122, 1567360), (124, 1542080), (128, 1493890), (155, 1233664), (158, 1210240), (160, 1195112), (244, 783680), (248, 771040), (256, 746945), (305, 626944), (310, 616832), (316, 605120), (320, 597556), (395, 484096), (488, 391840), (496, 385520), (610, 313472), (620, 308416), (632, 302560), (640, 298778), (790, 242048), (976, 195920), (992, 192760), (1220, 156736), (1240, 154208), (1264, 151280), (1280, 149389), (1580, 121024), (1891, 101120), (1952, 97960), (1984, 96380), (2440, 78368), (2449, 78080), (2480, 77104), (2528, 75640), (3160, 60512), (3782, 50560), (3904, 48980), (3968, 48190), (4819, 39680), (4880, 39184), (4898, 39040), (4960, 38552), (5056, 37820), (6320, 30256), (7564, 25280), (7808, 24490), (7936, 24095), (9455, 20224), (9638, 19840), (9760, 19592), (9796, 19520), (9920, 19276), (10112, 18910), (12245, 15616), (12640, 15128)]