249533960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{1543}}^1$

素因数の和:1878

約数の個数: 64

約数和(自身を含む): 606977280

約数和(自身を除く): 357443320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 311, 520, 622, 1244, 1543, 1555, 2488, 3086, 3110, 4043, 6172, 6220, 7715, 8086, 12344, 12440, 15430, 16172, 20059, 20215, 30860, 32344, 40118, 40430, 61720, 80236, 80860, 100295, 160472, 161720, 200590, 401180, 479873, 802360, 959746, 1919492, 2399365, 3838984, 4798730, 6238349, 9597460, 12476698, 19194920, 24953396, 31191745, 49906792, 62383490, 124766980, 249533960]

約数ペア:

[(1, 249533960), (2, 124766980), (4, 62383490), (5, 49906792), (8, 31191745), (10, 24953396), (13, 19194920), (20, 12476698), (26, 9597460), (40, 6238349), (52, 4798730), (65, 3838984), (104, 2399365), (130, 1919492), (260, 959746), (311, 802360), (520, 479873), (622, 401180), (1244, 200590), (1543, 161720), (1555, 160472), (2488, 100295), (3086, 80860), (3110, 80236), (4043, 61720), (6172, 40430), (6220, 40118), (7715, 32344), (8086, 30860), (12344, 20215), (12440, 20059), (15430, 16172)]