316209920

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:678

約数の個数: 144

約数和(自身を含む): 843370752

約数和(自身を除く): 527160832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 496, 520, 613, 620, 640, 806, 832, 992, 1040, 1226, 1240, 1280, 1612, 1664, 1984, 2015, 2080, 2452, 2480, 3065, 3224, 3328, 3968, 4030, 4160, 4904, 4960, 6130, 6448, 7936, 7969, 8060, 8320, 9808, 9920, 12260, 12896, 15938, 16120, 16640, 19003, 19616, 19840, 24520, 25792, 31876, 32240, 38006, 39232, 39680, 39845, 49040, 51584, 63752, 64480, 76012, 78464, 79690, 95015, 98080, 103168, 127504, 128960, 152024, 156928, 159380, 190030, 196160, 247039, 255008, 257920, 304048, 318760, 380060, 392320, 494078, 510016, 515840, 608096, 637520, 760120, 784640, 988156, 1020032, 1216192, 1235195, 1275040, 1520240, 1976312, 2040064, 2432384, 2470390, 2550080, 3040480, 3952624, 4864768, 4940780, 5100160, 6080960, 7905248, 9881560, 10200320, 12161920, 15810496, 19763120, 24323840, 31620992, 39526240, 63241984, 79052480, 158104960, 316209920]

約数ペア:

[(1, 316209920), (2, 158104960), (4, 79052480), (5, 63241984), (8, 39526240), (10, 31620992), (13, 24323840), (16, 19763120), (20, 15810496), (26, 12161920), (31, 10200320), (32, 9881560), (40, 7905248), (52, 6080960), (62, 5100160), (64, 4940780), (65, 4864768), (80, 3952624), (104, 3040480), (124, 2550080), (128, 2470390), (130, 2432384), (155, 2040064), (160, 1976312), (208, 1520240), (248, 1275040), (256, 1235195), (260, 1216192), (310, 1020032), (320, 988156), (403, 784640), (416, 760120), (496, 637520), (520, 608096), (613, 515840), (620, 510016), (640, 494078), (806, 392320), (832, 380060), (992, 318760), (1040, 304048), (1226, 257920), (1240, 255008), (1280, 247039), (1612, 196160), (1664, 190030), (1984, 159380), (2015, 156928), (2080, 152024), (2452, 128960), (2480, 127504), (3065, 103168), (3224, 98080), (3328, 95015), (3968, 79690), (4030, 78464), (4160, 76012), (4904, 64480), (4960, 63752), (6130, 51584), (6448, 49040), (7936, 39845), (7969, 39680), (8060, 39232), (8320, 38006), (9808, 32240), (9920, 31876), (12260, 25792), (12896, 24520), (15938, 19840), (16120, 19616), (16640, 19003)]