81589760

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:216

約数の個数: 160

約数和(自身を含む): 232752960

約数和(自身を除く): 151163200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 80, 112, 116, 128, 140, 145, 157, 160, 203, 224, 232, 256, 280, 290, 314, 320, 406, 448, 464, 512, 560, 580, 628, 640, 785, 812, 896, 928, 1015, 1099, 1120, 1160, 1256, 1280, 1570, 1624, 1792, 1856, 2030, 2198, 2240, 2320, 2512, 2560, 3140, 3248, 3584, 3712, 4060, 4396, 4480, 4553, 4640, 5024, 5495, 6280, 6496, 7424, 8120, 8792, 8960, 9106, 9280, 10048, 10990, 12560, 12992, 14848, 16240, 17584, 17920, 18212, 18560, 20096, 21980, 22765, 25120, 25984, 31871, 32480, 35168, 36424, 37120, 40192, 43960, 45530, 50240, 51968, 63742, 64960, 70336, 72848, 74240, 80384, 87920, 91060, 100480, 103936, 127484, 129920, 140672, 145696, 159355, 175840, 182120, 200960, 254968, 259840, 281344, 291392, 318710, 351680, 364240, 401920, 509936, 519680, 562688, 582784, 637420, 703360, 728480, 1019872, 1165568, 1274840, 1406720, 1456960, 2039744, 2331136, 2549680, 2813440, 2913920, 4079488, 5099360, 5827840, 8158976, 10198720, 11655680, 16317952, 20397440, 40794880, 81589760]

約数ペア:

[(1, 81589760), (2, 40794880), (4, 20397440), (5, 16317952), (7, 11655680), (8, 10198720), (10, 8158976), (14, 5827840), (16, 5099360), (20, 4079488), (28, 2913920), (29, 2813440), (32, 2549680), (35, 2331136), (40, 2039744), (56, 1456960), (58, 1406720), (64, 1274840), (70, 1165568), (80, 1019872), (112, 728480), (116, 703360), (128, 637420), (140, 582784), (145, 562688), (157, 519680), (160, 509936), (203, 401920), (224, 364240), (232, 351680), (256, 318710), (280, 291392), (290, 281344), (314, 259840), (320, 254968), (406, 200960), (448, 182120), (464, 175840), (512, 159355), (560, 145696), (580, 140672), (628, 129920), (640, 127484), (785, 103936), (812, 100480), (896, 91060), (928, 87920), (1015, 80384), (1099, 74240), (1120, 72848), (1160, 70336), (1256, 64960), (1280, 63742), (1570, 51968), (1624, 50240), (1792, 45530), (1856, 43960), (2030, 40192), (2198, 37120), (2240, 36424), (2320, 35168), (2512, 32480), (2560, 31871), (3140, 25984), (3248, 25120), (3584, 22765), (3712, 21980), (4060, 20096), (4396, 18560), (4480, 18212), (4553, 17920), (4640, 17584), (5024, 16240), (5495, 14848), (6280, 12992), (6496, 12560), (7424, 10990), (8120, 10048), (8792, 9280), (8960, 9106)]