642051240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{641}}^1$

素因数の和:1163

約数の個数: 128

約数和(自身を含む): 2046798720

約数和(自身を除く): 1404747480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 491, 510, 641, 680, 982, 1020, 1282, 1473, 1923, 1964, 2040, 2455, 2564, 2946, 3205, 3846, 3928, 4910, 5128, 5892, 6410, 7365, 7692, 8347, 9615, 9820, 10897, 11784, 12820, 14730, 15384, 16694, 19230, 19640, 21794, 25041, 25640, 29460, 32691, 33388, 38460, 41735, 43588, 50082, 54485, 58920, 65382, 66776, 76920, 83470, 87176, 100164, 108970, 125205, 130764, 163455, 166940, 200328, 217940, 250410, 261528, 314731, 326910, 333880, 435880, 500820, 629462, 653820, 944193, 1001640, 1258924, 1307640, 1573655, 1888386, 2517848, 3147310, 3776772, 4720965, 5350427, 6294620, 7553544, 9441930, 10700854, 12589240, 16051281, 18883860, 21401708, 26752135, 32102562, 37767720, 42803416, 53504270, 64205124, 80256405, 107008540, 128410248, 160512810, 214017080, 321025620, 642051240]

約数ペア:

[(1, 642051240), (2, 321025620), (3, 214017080), (4, 160512810), (5, 128410248), (6, 107008540), (8, 80256405), (10, 64205124), (12, 53504270), (15, 42803416), (17, 37767720), (20, 32102562), (24, 26752135), (30, 21401708), (34, 18883860), (40, 16051281), (51, 12589240), (60, 10700854), (68, 9441930), (85, 7553544), (102, 6294620), (120, 5350427), (136, 4720965), (170, 3776772), (204, 3147310), (255, 2517848), (340, 1888386), (408, 1573655), (491, 1307640), (510, 1258924), (641, 1001640), (680, 944193), (982, 653820), (1020, 629462), (1282, 500820), (1473, 435880), (1923, 333880), (1964, 326910), (2040, 314731), (2455, 261528), (2564, 250410), (2946, 217940), (3205, 200328), (3846, 166940), (3928, 163455), (4910, 130764), (5128, 125205), (5892, 108970), (6410, 100164), (7365, 87176), (7692, 83470), (8347, 76920), (9615, 66776), (9820, 65382), (10897, 58920), (11784, 54485), (12820, 50082), (14730, 43588), (15384, 41735), (16694, 38460), (19230, 33388), (19640, 32691), (21794, 29460), (25041, 25640)]