66512500

素因数分解:

$2^2\times 5^5\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:359

約数の個数: 72

約数和(自身を含む): 154536984

約数和(自身を除く): 88024484

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 250, 313, 340, 425, 500, 625, 626, 850, 1250, 1252, 1565, 1700, 2125, 2500, 3125, 3130, 4250, 5321, 6250, 6260, 7825, 8500, 10625, 10642, 12500, 15650, 21250, 21284, 26605, 31300, 39125, 42500, 53125, 53210, 78250, 106250, 106420, 133025, 156500, 195625, 212500, 266050, 391250, 532100, 665125, 782500, 978125, 1330250, 1956250, 2660500, 3325625, 3912500, 6651250, 13302500, 16628125, 33256250, 66512500]

約数ペア:

[(1, 66512500), (2, 33256250), (4, 16628125), (5, 13302500), (10, 6651250), (17, 3912500), (20, 3325625), (25, 2660500), (34, 1956250), (50, 1330250), (68, 978125), (85, 782500), (100, 665125), (125, 532100), (170, 391250), (250, 266050), (313, 212500), (340, 195625), (425, 156500), (500, 133025), (625, 106420), (626, 106250), (850, 78250), (1250, 53210), (1252, 53125), (1565, 42500), (1700, 39125), (2125, 31300), (2500, 26605), (3125, 21284), (3130, 21250), (4250, 15650), (5321, 12500), (6250, 10642), (6260, 10625), (7825, 8500)]