78407680

素因数分解:

$2^{11}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 192

約数和(自身を含む): 220147200

約数和(自身を除く): 141739520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 32, 38, 40, 52, 62, 64, 65, 76, 80, 95, 104, 124, 128, 130, 152, 155, 160, 190, 208, 247, 248, 256, 260, 304, 310, 320, 380, 403, 416, 494, 496, 512, 520, 589, 608, 620, 640, 760, 806, 832, 988, 992, 1024, 1040, 1178, 1216, 1235, 1240, 1280, 1520, 1612, 1664, 1976, 1984, 2015, 2048, 2080, 2356, 2432, 2470, 2480, 2560, 2945, 3040, 3224, 3328, 3952, 3968, 4030, 4160, 4712, 4864, 4940, 4960, 5120, 5890, 6080, 6448, 6656, 7657, 7904, 7936, 8060, 8320, 9424, 9728, 9880, 9920, 10240, 11780, 12160, 12896, 13312, 15314, 15808, 15872, 16120, 16640, 18848, 19456, 19760, 19840, 23560, 24320, 25792, 26624, 30628, 31616, 31744, 32240, 33280, 37696, 38285, 38912, 39520, 39680, 47120, 48640, 51584, 61256, 63232, 63488, 64480, 66560, 75392, 76570, 79040, 79360, 94240, 97280, 103168, 122512, 126464, 128960, 133120, 150784, 153140, 158080, 158720, 188480, 194560, 206336, 245024, 252928, 257920, 301568, 306280, 316160, 317440, 376960, 412672, 490048, 505856, 515840, 603136, 612560, 632320, 753920, 825344, 980096, 1031680, 1206272, 1225120, 1264640, 1507840, 1960192, 2063360, 2450240, 2529280, 3015680, 3920384, 4126720, 4900480, 6031360, 7840768, 9800960, 15681536, 19601920, 39203840, 78407680]

約数ペア:

[(1, 78407680), (2, 39203840), (4, 19601920), (5, 15681536), (8, 9800960), (10, 7840768), (13, 6031360), (16, 4900480), (19, 4126720), (20, 3920384), (26, 3015680), (31, 2529280), (32, 2450240), (38, 2063360), (40, 1960192), (52, 1507840), (62, 1264640), (64, 1225120), (65, 1206272), (76, 1031680), (80, 980096), (95, 825344), (104, 753920), (124, 632320), (128, 612560), (130, 603136), (152, 515840), (155, 505856), (160, 490048), (190, 412672), (208, 376960), (247, 317440), (248, 316160), (256, 306280), (260, 301568), (304, 257920), (310, 252928), (320, 245024), (380, 206336), (403, 194560), (416, 188480), (494, 158720), (496, 158080), (512, 153140), (520, 150784), (589, 133120), (608, 128960), (620, 126464), (640, 122512), (760, 103168), (806, 97280), (832, 94240), (988, 79360), (992, 79040), (1024, 76570), (1040, 75392), (1178, 66560), (1216, 64480), (1235, 63488), (1240, 63232), (1280, 61256), (1520, 51584), (1612, 48640), (1664, 47120), (1976, 39680), (1984, 39520), (2015, 38912), (2048, 38285), (2080, 37696), (2356, 33280), (2432, 32240), (2470, 31744), (2480, 31616), (2560, 30628), (2945, 26624), (3040, 25792), (3224, 24320), (3328, 23560), (3952, 19840), (3968, 19760), (4030, 19456), (4160, 18848), (4712, 16640), (4864, 16120), (4940, 15872), (4960, 15808), (5120, 15314), (5890, 13312), (6080, 12896), (6448, 12160), (6656, 11780), (7657, 10240), (7904, 9920), (7936, 9880), (8060, 9728), (8320, 9424)]