81613440

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{4723}}^1$

素因数の和:4751

約数の個数: 128

約数和(自身を含む): 289108800

約数和(自身を除く): 207495360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1152, 1440, 1728, 1920, 2160, 2880, 3456, 4320, 4723, 5760, 8640, 9446, 14169, 17280, 18892, 23615, 28338, 37784, 42507, 47230, 56676, 70845, 75568, 85014, 94460, 113352, 127521, 141690, 151136, 170028, 188920, 212535, 226704, 255042, 283380, 302272, 340056, 377840, 425070, 453408, 510084, 566760, 604544, 637605, 680112, 755680, 850140, 906816, 1020168, 1133520, 1275210, 1360224, 1511360, 1700280, 1813632, 2040336, 2267040, 2550420, 2720448, 3022720, 3400560, 4080672, 4534080, 5100840, 5440896, 6801120, 8161344, 9068160, 10201680, 13602240, 16322688, 20403360, 27204480, 40806720, 81613440]

約数ペア:

[(1, 81613440), (2, 40806720), (3, 27204480), (4, 20403360), (5, 16322688), (6, 13602240), (8, 10201680), (9, 9068160), (10, 8161344), (12, 6801120), (15, 5440896), (16, 5100840), (18, 4534080), (20, 4080672), (24, 3400560), (27, 3022720), (30, 2720448), (32, 2550420), (36, 2267040), (40, 2040336), (45, 1813632), (48, 1700280), (54, 1511360), (60, 1360224), (64, 1275210), (72, 1133520), (80, 1020168), (90, 906816), (96, 850140), (108, 755680), (120, 680112), (128, 637605), (135, 604544), (144, 566760), (160, 510084), (180, 453408), (192, 425070), (216, 377840), (240, 340056), (270, 302272), (288, 283380), (320, 255042), (360, 226704), (384, 212535), (432, 188920), (480, 170028), (540, 151136), (576, 141690), (640, 127521), (720, 113352), (864, 94460), (960, 85014), (1080, 75568), (1152, 70845), (1440, 56676), (1728, 47230), (1920, 42507), (2160, 37784), (2880, 28338), (3456, 23615), (4320, 18892), (4723, 17280), (5760, 14169), (8640, 9446)]