20734626380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{348247}}^1$

素因数の和:348498

約数の個数: 48

約数和(自身を含む): 47097059520

約数和(自身を除く): 26362433140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 229, 260, 458, 916, 1145, 2290, 2977, 4580, 5954, 11908, 14885, 29770, 59540, 348247, 696494, 1392988, 1741235, 3482470, 4527211, 6964940, 9054422, 18108844, 22636055, 45272110, 79748563, 90544220, 159497126, 318994252, 398742815, 797485630, 1036731319, 1594971260, 2073462638, 4146925276, 5183656595, 10367313190, 20734626380]

約数ペア:

[(1, 20734626380), (2, 10367313190), (4, 5183656595), (5, 4146925276), (10, 2073462638), (13, 1594971260), (20, 1036731319), (26, 797485630), (52, 398742815), (65, 318994252), (130, 159497126), (229, 90544220), (260, 79748563), (458, 45272110), (916, 22636055), (1145, 18108844), (2290, 9054422), (2977, 6964940), (4580, 4527211), (5954, 3482470), (11908, 1741235), (14885, 1392988), (29770, 696494), (59540, 348247)]