65219840

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1$

素因数の和:308

約数の個数: 144

約数和(自身を含む): 185431680

約数和(自身を除く): 120211840

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, 160, 203, 224, 232, 251, 256, 280, 290, 320, 406, 448, 464, 502, 560, 580, 640, 812, 896, 928, 1004, 1015, 1120, 1160, 1255, 1280, 1624, 1757, 1792, 1856, 2008, 2030, 2240, 2320, 2510, 3248, 3514, 3712, 4016, 4060, 4480, 4640, 5020, 6496, 7028, 7279, 7424, 8032, 8120, 8785, 8960, 9280, 10040, 12992, 14056, 14558, 16064, 16240, 17570, 18560, 20080, 25984, 28112, 29116, 32128, 32480, 35140, 36395, 37120, 40160, 50953, 51968, 56224, 58232, 64256, 64960, 70280, 72790, 80320, 101906, 112448, 116464, 129920, 140560, 145580, 160640, 203812, 224896, 232928, 254765, 259840, 281120, 291160, 321280, 407624, 449792, 465856, 509530, 562240, 582320, 815248, 931712, 1019060, 1124480, 1164640, 1630496, 1863424, 2038120, 2248960, 2329280, 3260992, 4076240, 4658560, 6521984, 8152480, 9317120, 13043968, 16304960, 32609920, 65219840]

約数ペア:

[(1, 65219840), (2, 32609920), (4, 16304960), (5, 13043968), (7, 9317120), (8, 8152480), (10, 6521984), (14, 4658560), (16, 4076240), (20, 3260992), (28, 2329280), (29, 2248960), (32, 2038120), (35, 1863424), (40, 1630496), (56, 1164640), (58, 1124480), (64, 1019060), (70, 931712), (80, 815248), (112, 582320), (116, 562240), (128, 509530), (140, 465856), (145, 449792), (160, 407624), (203, 321280), (224, 291160), (232, 281120), (251, 259840), (256, 254765), (280, 232928), (290, 224896), (320, 203812), (406, 160640), (448, 145580), (464, 140560), (502, 129920), (560, 116464), (580, 112448), (640, 101906), (812, 80320), (896, 72790), (928, 70280), (1004, 64960), (1015, 64256), (1120, 58232), (1160, 56224), (1255, 51968), (1280, 50953), (1624, 40160), (1757, 37120), (1792, 36395), (1856, 35140), (2008, 32480), (2030, 32128), (2240, 29116), (2320, 28112), (2510, 25984), (3248, 20080), (3514, 18560), (3712, 17570), (4016, 16240), (4060, 16064), (4480, 14558), (4640, 14056), (5020, 12992), (6496, 10040), (7028, 9280), (7279, 8960), (7424, 8785), (8032, 8120)]