654081960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{797}}^1\times {\mathrm{977}}^1$

素因数の和:1795

約数の個数: 128

約数和(自身を含む): 2247678720

約数和(自身を除く): 1593596760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 797, 840, 977, 1594, 1954, 2391, 2931, 3188, 3908, 3985, 4782, 4885, 5579, 5862, 6376, 6839, 7816, 7970, 9564, 9770, 11158, 11724, 11955, 13678, 14655, 15940, 16737, 19128, 19540, 20517, 22316, 23448, 23910, 27356, 27895, 29310, 31880, 33474, 34195, 39080, 41034, 44632, 47820, 54712, 55790, 58620, 66948, 68390, 82068, 83685, 95640, 102585, 111580, 117240, 133896, 136780, 164136, 167370, 205170, 223160, 273560, 334740, 410340, 669480, 778669, 820680, 1557338, 2336007, 3114676, 3893345, 4672014, 5450683, 6229352, 7786690, 9344028, 10901366, 11680035, 15573380, 16352049, 18688056, 21802732, 23360070, 27253415, 31146760, 32704098, 43605464, 46720140, 54506830, 65408196, 81760245, 93440280, 109013660, 130816392, 163520490, 218027320, 327040980, 654081960]

約数ペア:

[(1, 654081960), (2, 327040980), (3, 218027320), (4, 163520490), (5, 130816392), (6, 109013660), (7, 93440280), (8, 81760245), (10, 65408196), (12, 54506830), (14, 46720140), (15, 43605464), (20, 32704098), (21, 31146760), (24, 27253415), (28, 23360070), (30, 21802732), (35, 18688056), (40, 16352049), (42, 15573380), (56, 11680035), (60, 10901366), (70, 9344028), (84, 7786690), (105, 6229352), (120, 5450683), (140, 4672014), (168, 3893345), (210, 3114676), (280, 2336007), (420, 1557338), (797, 820680), (840, 778669), (977, 669480), (1594, 410340), (1954, 334740), (2391, 273560), (2931, 223160), (3188, 205170), (3908, 167370), (3985, 164136), (4782, 136780), (4885, 133896), (5579, 117240), (5862, 111580), (6376, 102585), (6839, 95640), (7816, 83685), (7970, 82068), (9564, 68390), (9770, 66948), (11158, 58620), (11724, 55790), (11955, 54712), (13678, 47820), (14655, 44632), (15940, 41034), (16737, 39080), (19128, 34195), (19540, 33474), (20517, 31880), (22316, 29310), (23448, 27895), (23910, 27356)]