80769880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1229}}^1$

素因数の和:1324

約数の個数: 64

約数和(自身を含む): 191289600

約数和(自身を除く): 110519720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 212, 248, 265, 310, 424, 530, 620, 1060, 1229, 1240, 1643, 2120, 2458, 3286, 4916, 6145, 6572, 8215, 9832, 12290, 13144, 16430, 24580, 32860, 38099, 49160, 65137, 65720, 76198, 130274, 152396, 190495, 260548, 304792, 325685, 380990, 521096, 651370, 761980, 1302740, 1523960, 2019247, 2605480, 4038494, 8076988, 10096235, 16153976, 20192470, 40384940, 80769880]

約数ペア:

[(1, 80769880), (2, 40384940), (4, 20192470), (5, 16153976), (8, 10096235), (10, 8076988), (20, 4038494), (31, 2605480), (40, 2019247), (53, 1523960), (62, 1302740), (106, 761980), (124, 651370), (155, 521096), (212, 380990), (248, 325685), (265, 304792), (310, 260548), (424, 190495), (530, 152396), (620, 130274), (1060, 76198), (1229, 65720), (1240, 65137), (1643, 49160), (2120, 38099), (2458, 32860), (3286, 24580), (4916, 16430), (6145, 13144), (6572, 12290), (8215, 9832)]