64396980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2731}}^1$

素因数の和:2877

約数の個数: 72

約数和(自身を含む): 196900704

約数和(自身を除く): 132503724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 1179, 1310, 1572, 1965, 2358, 2620, 2731, 3930, 4716, 5462, 5895, 7860, 8193, 10924, 11790, 13655, 16386, 23580, 24579, 27310, 32772, 40965, 49158, 54620, 81930, 98316, 122895, 163860, 245790, 357761, 491580, 715522, 1073283, 1431044, 1788805, 2146566, 3219849, 3577610, 4293132, 5366415, 6439698, 7155220, 10732830, 12879396, 16099245, 21465660, 32198490, 64396980]

約数ペア:

[(1, 64396980), (2, 32198490), (3, 21465660), (4, 16099245), (5, 12879396), (6, 10732830), (9, 7155220), (10, 6439698), (12, 5366415), (15, 4293132), (18, 3577610), (20, 3219849), (30, 2146566), (36, 1788805), (45, 1431044), (60, 1073283), (90, 715522), (131, 491580), (180, 357761), (262, 245790), (393, 163860), (524, 122895), (655, 98316), (786, 81930), (1179, 54620), (1310, 49158), (1572, 40965), (1965, 32772), (2358, 27310), (2620, 24579), (2731, 23580), (3930, 16386), (4716, 13655), (5462, 11790), (5895, 10924), (7860, 8193)]