205030760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{7639}}^1$

素因数の和:7722

約数の個数: 64

約数和(自身を含む): 511574400

約数和(自身を除く): 306543640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 305, 440, 488, 610, 671, 1220, 1342, 2440, 2684, 3355, 5368, 6710, 7639, 13420, 15278, 26840, 30556, 38195, 61112, 76390, 84029, 152780, 168058, 305560, 336116, 420145, 465979, 672232, 840290, 931958, 1680580, 1863916, 2329895, 3361160, 3727832, 4659790, 5125769, 9319580, 10251538, 18639160, 20503076, 25628845, 41006152, 51257690, 102515380, 205030760]

約数ペア:

[(1, 205030760), (2, 102515380), (4, 51257690), (5, 41006152), (8, 25628845), (10, 20503076), (11, 18639160), (20, 10251538), (22, 9319580), (40, 5125769), (44, 4659790), (55, 3727832), (61, 3361160), (88, 2329895), (110, 1863916), (122, 1680580), (220, 931958), (244, 840290), (305, 672232), (440, 465979), (488, 420145), (610, 336116), (671, 305560), (1220, 168058), (1342, 152780), (2440, 84029), (2684, 76390), (3355, 61112), (5368, 38195), (6710, 30556), (7639, 26840), (13420, 15278)]