661248540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{60223}}^1$

素因数の和:60299

約数の個数: 72

約数和(自身を含む): 2038702848

約数和(自身を除く): 1377454308

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 60223, 120446, 180669, 240892, 301115, 361338, 542007, 602230, 722676, 903345, 1084014, 1204460, 1806690, 2168028, 2710035, 3613380, 3673603, 5420070, 7347206, 10840140, 11020809, 14694412, 18368015, 22041618, 33062427, 36736030, 44083236, 55104045, 66124854, 73472060, 110208090, 132249708, 165312135, 220416180, 330624270, 661248540]

約数ペア:

[(1, 661248540), (2, 330624270), (3, 220416180), (4, 165312135), (5, 132249708), (6, 110208090), (9, 73472060), (10, 66124854), (12, 55104045), (15, 44083236), (18, 36736030), (20, 33062427), (30, 22041618), (36, 18368015), (45, 14694412), (60, 11020809), (61, 10840140), (90, 7347206), (122, 5420070), (180, 3673603), (183, 3613380), (244, 2710035), (305, 2168028), (366, 1806690), (549, 1204460), (610, 1084014), (732, 903345), (915, 722676), (1098, 602230), (1220, 542007), (1830, 361338), (2196, 301115), (2745, 240892), (3660, 180669), (5490, 120446), (10980, 60223)]