768888505

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2801}}^1$

素因数の和:2878

約数の個数: 64

約数和(自身を含む): 1239515136

約数和(自身を除く): 470626631

約数列:

[1, 5, 7, 11, 23, 31, 35, 55, 77, 115, 155, 161, 217, 253, 341, 385, 713, 805, 1085, 1265, 1705, 1771, 2387, 2801, 3565, 4991, 7843, 8855, 11935, 14005, 19607, 24955, 30811, 39215, 54901, 64423, 86831, 98035, 154055, 215677, 274505, 322115, 434155, 450961, 607817, 708653, 955141, 1078385, 1997113, 2254805, 3039085, 3543265, 4775705, 4960571, 6685987, 9985565, 13979791, 21968243, 24802855, 33429935, 69898955, 109841215, 153777701, 768888505]

約数ペア:

[(1, 768888505), (5, 153777701), (7, 109841215), (11, 69898955), (23, 33429935), (31, 24802855), (35, 21968243), (55, 13979791), (77, 9985565), (115, 6685987), (155, 4960571), (161, 4775705), (217, 3543265), (253, 3039085), (341, 2254805), (385, 1997113), (713, 1078385), (805, 955141), (1085, 708653), (1265, 607817), (1705, 450961), (1771, 434155), (2387, 322115), (2801, 274505), (3565, 215677), (4991, 154055), (7843, 98035), (8855, 86831), (11935, 64423), (14005, 54901), (19607, 39215), (24955, 30811)]