216931680

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{21521}}^1$

素因数の和:21549

約数の個数: 144

約数和(自身を含む): 846072864

約数和(自身を除く): 629141184

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 21521, 43042, 64563, 86084, 107605, 129126, 150647, 172168, 193689, 215210, 258252, 301294, 322815, 344336, 387378, 430420, 451941, 516504, 602588, 645630, 688672, 753235, 774756, 860840, 903882, 968445, 1033008, 1205176, 1291260, 1355823, 1506470, 1549512, 1721680, 1807764, 1936890, 2066016, 2259705, 2410352, 2582520, 2711646, 3012940, 3099024, 3443360, 3615528, 3873780, 4519410, 4820704, 5165040, 5423292, 6025880, 6198048, 6779115, 7231056, 7747560, 9038820, 10330080, 10846584, 12051760, 13558230, 14462112, 15495120, 18077640, 21693168, 24103520, 27116460, 30990240, 36155280, 43386336, 54232920, 72310560, 108465840, 216931680]

約数ペア:

[(1, 216931680), (2, 108465840), (3, 72310560), (4, 54232920), (5, 43386336), (6, 36155280), (7, 30990240), (8, 27116460), (9, 24103520), (10, 21693168), (12, 18077640), (14, 15495120), (15, 14462112), (16, 13558230), (18, 12051760), (20, 10846584), (21, 10330080), (24, 9038820), (28, 7747560), (30, 7231056), (32, 6779115), (35, 6198048), (36, 6025880), (40, 5423292), (42, 5165040), (45, 4820704), (48, 4519410), (56, 3873780), (60, 3615528), (63, 3443360), (70, 3099024), (72, 3012940), (80, 2711646), (84, 2582520), (90, 2410352), (96, 2259705), (105, 2066016), (112, 1936890), (120, 1807764), (126, 1721680), (140, 1549512), (144, 1506470), (160, 1355823), (168, 1291260), (180, 1205176), (210, 1033008), (224, 968445), (240, 903882), (252, 860840), (280, 774756), (288, 753235), (315, 688672), (336, 645630), (360, 602588), (420, 516504), (480, 451941), (504, 430420), (560, 387378), (630, 344336), (672, 322815), (720, 301294), (840, 258252), (1008, 215210), (1120, 193689), (1260, 172168), (1440, 150647), (1680, 129126), (2016, 107605), (2520, 86084), (3360, 64563), (5040, 43042), (10080, 21521)]