813492080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{991}}^1$

素因数の和:1366

約数の個数: 80

約数和(自身を含む): 1960255488

約数和(自身を除く): 1146763408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 331, 496, 620, 662, 991, 1240, 1324, 1655, 1982, 2480, 2648, 3310, 3964, 4955, 5296, 6620, 7928, 9910, 10261, 13240, 15856, 19820, 20522, 26480, 30721, 39640, 41044, 51305, 61442, 79280, 82088, 102610, 122884, 153605, 164176, 205220, 245768, 307210, 328021, 410440, 491536, 614420, 656042, 820880, 1228840, 1312084, 1640105, 2457680, 2624168, 3280210, 5248336, 6560420, 10168651, 13120840, 20337302, 26241680, 40674604, 50843255, 81349208, 101686510, 162698416, 203373020, 406746040, 813492080]

約数ペア:

[(1, 813492080), (2, 406746040), (4, 203373020), (5, 162698416), (8, 101686510), (10, 81349208), (16, 50843255), (20, 40674604), (31, 26241680), (40, 20337302), (62, 13120840), (80, 10168651), (124, 6560420), (155, 5248336), (248, 3280210), (310, 2624168), (331, 2457680), (496, 1640105), (620, 1312084), (662, 1228840), (991, 820880), (1240, 656042), (1324, 614420), (1655, 491536), (1982, 410440), (2480, 328021), (2648, 307210), (3310, 245768), (3964, 205220), (4955, 164176), (5296, 153605), (6620, 122884), (7928, 102610), (9910, 82088), (10261, 79280), (13240, 61442), (15856, 51305), (19820, 41044), (20522, 39640), (26480, 30721)]