220145920

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:256

約数の個数: 144

約数和(自身を含む): 570423168

約数和(自身を除く): 350277248

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 67, 68, 80, 85, 128, 134, 136, 151, 160, 170, 256, 268, 272, 302, 320, 335, 340, 536, 544, 604, 640, 670, 680, 755, 1072, 1088, 1139, 1208, 1280, 1340, 1360, 1510, 2144, 2176, 2278, 2416, 2567, 2680, 2720, 3020, 4288, 4352, 4556, 4832, 5134, 5360, 5440, 5695, 6040, 8576, 9112, 9664, 10117, 10268, 10720, 10880, 11390, 12080, 12835, 17152, 18224, 19328, 20234, 20536, 21440, 21760, 22780, 24160, 25670, 36448, 38656, 40468, 41072, 42880, 45560, 48320, 50585, 51340, 72896, 80936, 82144, 85760, 91120, 96640, 101170, 102680, 145792, 161872, 164288, 171989, 182240, 193280, 202340, 205360, 291584, 323744, 328576, 343978, 364480, 404680, 410720, 647488, 657152, 687956, 728960, 809360, 821440, 859945, 1294976, 1375912, 1457920, 1618720, 1642880, 1719890, 2589952, 2751824, 3237440, 3285760, 3439780, 5503648, 6474880, 6879560, 11007296, 12949760, 13759120, 22014592, 27518240, 44029184, 55036480, 110072960, 220145920]

約数ペア:

[(1, 220145920), (2, 110072960), (4, 55036480), (5, 44029184), (8, 27518240), (10, 22014592), (16, 13759120), (17, 12949760), (20, 11007296), (32, 6879560), (34, 6474880), (40, 5503648), (64, 3439780), (67, 3285760), (68, 3237440), (80, 2751824), (85, 2589952), (128, 1719890), (134, 1642880), (136, 1618720), (151, 1457920), (160, 1375912), (170, 1294976), (256, 859945), (268, 821440), (272, 809360), (302, 728960), (320, 687956), (335, 657152), (340, 647488), (536, 410720), (544, 404680), (604, 364480), (640, 343978), (670, 328576), (680, 323744), (755, 291584), (1072, 205360), (1088, 202340), (1139, 193280), (1208, 182240), (1280, 171989), (1340, 164288), (1360, 161872), (1510, 145792), (2144, 102680), (2176, 101170), (2278, 96640), (2416, 91120), (2567, 85760), (2680, 82144), (2720, 80936), (3020, 72896), (4288, 51340), (4352, 50585), (4556, 48320), (4832, 45560), (5134, 42880), (5360, 41072), (5440, 40468), (5695, 38656), (6040, 36448), (8576, 25670), (9112, 24160), (9664, 22780), (10117, 21760), (10268, 21440), (10720, 20536), (10880, 20234), (11390, 19328), (12080, 18224), (12835, 17152)]