254312500

素因数分解:

$2^2\times 5^6\times {\mathrm{13}}^1\times {\mathrm{313}}^1$

素因数の和:360

約数の個数: 84

約数和(自身を含む): 601007932

約数和(自身を除く): 346695432

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 313, 325, 500, 625, 626, 650, 1250, 1252, 1300, 1565, 1625, 2500, 3125, 3130, 3250, 4069, 6250, 6260, 6500, 7825, 8125, 8138, 12500, 15625, 15650, 16250, 16276, 20345, 31250, 31300, 32500, 39125, 40625, 40690, 62500, 78250, 81250, 81380, 101725, 156500, 162500, 195625, 203125, 203450, 391250, 406250, 406900, 508625, 782500, 812500, 978125, 1017250, 1956250, 2034500, 2543125, 3912500, 4890625, 5086250, 9781250, 10172500, 12715625, 19562500, 25431250, 50862500, 63578125, 127156250, 254312500]

約数ペア:

[(1, 254312500), (2, 127156250), (4, 63578125), (5, 50862500), (10, 25431250), (13, 19562500), (20, 12715625), (25, 10172500), (26, 9781250), (50, 5086250), (52, 4890625), (65, 3912500), (100, 2543125), (125, 2034500), (130, 1956250), (250, 1017250), (260, 978125), (313, 812500), (325, 782500), (500, 508625), (625, 406900), (626, 406250), (650, 391250), (1250, 203450), (1252, 203125), (1300, 195625), (1565, 162500), (1625, 156500), (2500, 101725), (3125, 81380), (3130, 81250), (3250, 78250), (4069, 62500), (6250, 40690), (6260, 40625), (6500, 39125), (7825, 32500), (8125, 31300), (8138, 31250), (12500, 20345), (15625, 16276), (15650, 16250)]