665520640

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:262

約数の個数: 160

約数和(自身を含む): 1697034240

約数和(自身を除く): 1031513600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 89, 92, 115, 127, 128, 160, 178, 184, 230, 254, 256, 320, 356, 368, 445, 460, 508, 512, 635, 640, 712, 736, 890, 920, 1016, 1270, 1280, 1424, 1472, 1780, 1840, 2032, 2047, 2540, 2560, 2848, 2921, 2944, 3560, 3680, 4064, 4094, 5080, 5696, 5842, 5888, 7120, 7360, 8128, 8188, 10160, 10235, 11303, 11392, 11684, 11776, 14240, 14605, 14720, 16256, 16376, 20320, 20470, 22606, 22784, 23368, 28480, 29210, 29440, 32512, 32752, 40640, 40940, 45212, 45568, 46736, 56515, 56960, 58420, 58880, 65024, 65504, 81280, 81880, 90424, 93472, 113030, 113920, 116840, 131008, 162560, 163760, 180848, 186944, 226060, 227840, 233680, 259969, 262016, 325120, 327520, 361696, 373888, 452120, 467360, 519938, 524032, 655040, 723392, 747776, 904240, 934720, 1039876, 1048064, 1299845, 1310080, 1446784, 1495552, 1808480, 1869440, 2079752, 2599690, 2620160, 2893568, 3616960, 3738880, 4159504, 5199380, 5240320, 5787136, 7233920, 7477760, 8319008, 10398760, 14467840, 16638016, 20797520, 28935680, 33276032, 41595040, 66552064, 83190080, 133104128, 166380160, 332760320, 665520640]

約数ペア:

[(1, 665520640), (2, 332760320), (4, 166380160), (5, 133104128), (8, 83190080), (10, 66552064), (16, 41595040), (20, 33276032), (23, 28935680), (32, 20797520), (40, 16638016), (46, 14467840), (64, 10398760), (80, 8319008), (89, 7477760), (92, 7233920), (115, 5787136), (127, 5240320), (128, 5199380), (160, 4159504), (178, 3738880), (184, 3616960), (230, 2893568), (254, 2620160), (256, 2599690), (320, 2079752), (356, 1869440), (368, 1808480), (445, 1495552), (460, 1446784), (508, 1310080), (512, 1299845), (635, 1048064), (640, 1039876), (712, 934720), (736, 904240), (890, 747776), (920, 723392), (1016, 655040), (1270, 524032), (1280, 519938), (1424, 467360), (1472, 452120), (1780, 373888), (1840, 361696), (2032, 327520), (2047, 325120), (2540, 262016), (2560, 259969), (2848, 233680), (2921, 227840), (2944, 226060), (3560, 186944), (3680, 180848), (4064, 163760), (4094, 162560), (5080, 131008), (5696, 116840), (5842, 113920), (5888, 113030), (7120, 93472), (7360, 90424), (8128, 81880), (8188, 81280), (10160, 65504), (10235, 65024), (11303, 58880), (11392, 58420), (11684, 56960), (11776, 56515), (14240, 46736), (14605, 45568), (14720, 45212), (16256, 40940), (16376, 40640), (20320, 32752), (20470, 32512), (22606, 29440), (22784, 29210), (23368, 28480)]