12956450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:699

約数の個数: 48

約数和(自身を含む): 26831616

約数和(自身を除く): 13875166

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 643, 650, 775, 806, 1286, 1550, 2015, 3215, 4030, 6430, 8359, 10075, 16075, 16718, 19933, 20150, 32150, 39866, 41795, 83590, 99665, 199330, 208975, 259129, 417950, 498325, 518258, 996650, 1295645, 2591290, 6478225, 12956450]

約数ペア:

[(1, 12956450), (2, 6478225), (5, 2591290), (10, 1295645), (13, 996650), (25, 518258), (26, 498325), (31, 417950), (50, 259129), (62, 208975), (65, 199330), (130, 99665), (155, 83590), (310, 41795), (325, 39866), (403, 32150), (643, 20150), (650, 19933), (775, 16718), (806, 16075), (1286, 10075), (1550, 8359), (2015, 6430), (3215, 4030)]