19612580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{313}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 44680944

約数和(自身を除く): 25068364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 241, 260, 313, 482, 626, 964, 1205, 1252, 1565, 2410, 3130, 3133, 4069, 4820, 6260, 6266, 8138, 12532, 15665, 16276, 20345, 31330, 40690, 62660, 75433, 81380, 150866, 301732, 377165, 754330, 980629, 1508660, 1961258, 3922516, 4903145, 9806290, 19612580]

約数ペア:

[(1, 19612580), (2, 9806290), (4, 4903145), (5, 3922516), (10, 1961258), (13, 1508660), (20, 980629), (26, 754330), (52, 377165), (65, 301732), (130, 150866), (241, 81380), (260, 75433), (313, 62660), (482, 40690), (626, 31330), (964, 20345), (1205, 16276), (1252, 15665), (1565, 12532), (2410, 8138), (3130, 6266), (3133, 6260), (4069, 4820)]