81348700

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{313}}^1$

素因数の和:463

約数の個数: 72

約数和(自身を含む): 186425568

約数和(自身を除く): 105076868

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 113, 115, 226, 230, 313, 452, 460, 565, 575, 626, 1130, 1150, 1252, 1565, 2260, 2300, 2599, 2825, 3130, 5198, 5650, 6260, 7199, 7825, 10396, 11300, 12995, 14398, 15650, 25990, 28796, 31300, 35369, 35995, 51980, 64975, 70738, 71990, 129950, 141476, 143980, 176845, 179975, 259900, 353690, 359950, 707380, 719900, 813487, 884225, 1626974, 1768450, 3253948, 3536900, 4067435, 8134870, 16269740, 20337175, 40674350, 81348700]

約数ペア:

[(1, 81348700), (2, 40674350), (4, 20337175), (5, 16269740), (10, 8134870), (20, 4067435), (23, 3536900), (25, 3253948), (46, 1768450), (50, 1626974), (92, 884225), (100, 813487), (113, 719900), (115, 707380), (226, 359950), (230, 353690), (313, 259900), (452, 179975), (460, 176845), (565, 143980), (575, 141476), (626, 129950), (1130, 71990), (1150, 70738), (1252, 64975), (1565, 51980), (2260, 35995), (2300, 35369), (2599, 31300), (2825, 28796), (3130, 25990), (5198, 15650), (5650, 14398), (6260, 12995), (7199, 11300), (7825, 10396)]