440209920

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^2$

素因数の和:143

約数の個数: 240

約数和(自身を含む): 1487261952

約数和(自身を除く): 1047052032

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 43, 48, 60, 62, 64, 80, 86, 93, 96, 120, 124, 128, 129, 155, 160, 172, 186, 192, 215, 240, 248, 256, 258, 310, 320, 344, 372, 384, 430, 465, 480, 496, 512, 516, 620, 640, 645, 688, 744, 768, 860, 930, 960, 992, 1032, 1240, 1280, 1290, 1333, 1376, 1488, 1536, 1720, 1849, 1860, 1920, 1984, 2064, 2480, 2560, 2580, 2666, 2752, 2976, 3440, 3698, 3720, 3840, 3968, 3999, 4128, 4960, 5160, 5332, 5504, 5547, 5952, 6665, 6880, 7396, 7440, 7680, 7936, 7998, 8256, 9245, 9920, 10320, 10664, 11008, 11094, 11904, 13330, 13760, 14792, 14880, 15872, 15996, 16512, 18490, 19840, 19995, 20640, 21328, 22016, 22188, 23808, 26660, 27520, 27735, 29584, 29760, 31992, 33024, 36980, 39680, 39990, 41280, 42656, 44376, 47616, 53320, 55040, 55470, 57319, 59168, 59520, 63984, 66048, 73960, 79360, 79980, 82560, 85312, 88752, 106640, 110080, 110940, 114638, 118336, 119040, 127968, 147920, 159960, 165120, 170624, 171957, 177504, 213280, 221880, 229276, 236672, 238080, 255936, 286595, 295840, 319920, 330240, 341248, 343914, 355008, 426560, 443760, 458552, 473344, 511872, 573190, 591680, 639840, 682496, 687828, 710016, 853120, 859785, 887520, 917104, 946688, 1023744, 1146380, 1183360, 1279680, 1375656, 1420032, 1706240, 1719570, 1775040, 1834208, 2047488, 2292760, 2366720, 2559360, 2751312, 2840064, 3412480, 3439140, 3550080, 3668416, 4585520, 4733440, 5118720, 5502624, 6878280, 7100160, 7336832, 9171040, 10237440, 11005248, 13756560, 14200320, 14673664, 18342080, 22010496, 27513120, 29347328, 36684160, 44020992, 55026240, 73368320, 88041984, 110052480, 146736640, 220104960, 440209920]

約数ペア:

[(1, 440209920), (2, 220104960), (3, 146736640), (4, 110052480), (5, 88041984), (6, 73368320), (8, 55026240), (10, 44020992), (12, 36684160), (15, 29347328), (16, 27513120), (20, 22010496), (24, 18342080), (30, 14673664), (31, 14200320), (32, 13756560), (40, 11005248), (43, 10237440), (48, 9171040), (60, 7336832), (62, 7100160), (64, 6878280), (80, 5502624), (86, 5118720), (93, 4733440), (96, 4585520), (120, 3668416), (124, 3550080), (128, 3439140), (129, 3412480), (155, 2840064), (160, 2751312), (172, 2559360), (186, 2366720), (192, 2292760), (215, 2047488), (240, 1834208), (248, 1775040), (256, 1719570), (258, 1706240), (310, 1420032), (320, 1375656), (344, 1279680), (372, 1183360), (384, 1146380), (430, 1023744), (465, 946688), (480, 917104), (496, 887520), (512, 859785), (516, 853120), (620, 710016), (640, 687828), (645, 682496), (688, 639840), (744, 591680), (768, 573190), (860, 511872), (930, 473344), (960, 458552), (992, 443760), (1032, 426560), (1240, 355008), (1280, 343914), (1290, 341248), (1333, 330240), (1376, 319920), (1488, 295840), (1536, 286595), (1720, 255936), (1849, 238080), (1860, 236672), (1920, 229276), (1984, 221880), (2064, 213280), (2480, 177504), (2560, 171957), (2580, 170624), (2666, 165120), (2752, 159960), (2976, 147920), (3440, 127968), (3698, 119040), (3720, 118336), (3840, 114638), (3968, 110940), (3999, 110080), (4128, 106640), (4960, 88752), (5160, 85312), (5332, 82560), (5504, 79980), (5547, 79360), (5952, 73960), (6665, 66048), (6880, 63984), (7396, 59520), (7440, 59168), (7680, 57319), (7936, 55470), (7998, 55040), (8256, 53320), (9245, 47616), (9920, 44376), (10320, 42656), (10664, 41280), (11008, 39990), (11094, 39680), (11904, 36980), (13330, 33024), (13760, 31992), (14792, 29760), (14880, 29584), (15872, 27735), (15996, 27520), (16512, 26660), (18490, 23808), (19840, 22188), (19995, 22016), (20640, 21328)]