19901710336

素因数分解:

$2^{18}\times {\mathrm{31}}^2\times {\mathrm{79}}^1$

素因数の和:177

約数の個数: 114

約数和(自身を含む): 41649359280

約数和(自身を除く): 21747648944

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 79, 124, 128, 158, 248, 256, 316, 496, 512, 632, 961, 992, 1024, 1264, 1922, 1984, 2048, 2449, 2528, 3844, 3968, 4096, 4898, 5056, 7688, 7936, 8192, 9796, 10112, 15376, 15872, 16384, 19592, 20224, 30752, 31744, 32768, 39184, 40448, 61504, 63488, 65536, 75919, 78368, 80896, 123008, 126976, 131072, 151838, 156736, 161792, 246016, 253952, 262144, 303676, 313472, 323584, 492032, 507904, 607352, 626944, 647168, 984064, 1015808, 1214704, 1253888, 1294336, 1968128, 2031616, 2429408, 2507776, 2588672, 3936256, 4063232, 4858816, 5015552, 5177344, 7872512, 8126464, 9717632, 10031104, 10354688, 15745024, 19435264, 20062208, 20709376, 31490048, 38870528, 40124416, 62980096, 77741056, 80248832, 125960192, 155482112, 160497664, 251920384, 310964224, 320995328, 621928448, 641990656, 1243856896, 2487713792, 4975427584, 9950855168, 19901710336]

約数ペア:

[(1, 19901710336), (2, 9950855168), (4, 4975427584), (8, 2487713792), (16, 1243856896), (31, 641990656), (32, 621928448), (62, 320995328), (64, 310964224), (79, 251920384), (124, 160497664), (128, 155482112), (158, 125960192), (248, 80248832), (256, 77741056), (316, 62980096), (496, 40124416), (512, 38870528), (632, 31490048), (961, 20709376), (992, 20062208), (1024, 19435264), (1264, 15745024), (1922, 10354688), (1984, 10031104), (2048, 9717632), (2449, 8126464), (2528, 7872512), (3844, 5177344), (3968, 5015552), (4096, 4858816), (4898, 4063232), (5056, 3936256), (7688, 2588672), (7936, 2507776), (8192, 2429408), (9796, 2031616), (10112, 1968128), (15376, 1294336), (15872, 1253888), (16384, 1214704), (19592, 1015808), (20224, 984064), (30752, 647168), (31744, 626944), (32768, 607352), (39184, 507904), (40448, 492032), (61504, 323584), (63488, 313472), (65536, 303676), (75919, 262144), (78368, 253952), (80896, 246016), (123008, 161792), (126976, 156736), (131072, 151838)]