78941960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{431}}^1$

素因数の和:702

約数の個数: 64

約数和(自身を含む): 188179200

約数和(自身を除く): 109237240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 241, 380, 431, 482, 760, 862, 964, 1205, 1724, 1928, 2155, 2410, 3448, 4310, 4579, 4820, 8189, 8620, 9158, 9640, 16378, 17240, 18316, 22895, 32756, 36632, 40945, 45790, 65512, 81890, 91580, 103871, 163780, 183160, 207742, 327560, 415484, 519355, 830968, 1038710, 1973549, 2077420, 3947098, 4154840, 7894196, 9867745, 15788392, 19735490, 39470980, 78941960]

約数ペア:

[(1, 78941960), (2, 39470980), (4, 19735490), (5, 15788392), (8, 9867745), (10, 7894196), (19, 4154840), (20, 3947098), (38, 2077420), (40, 1973549), (76, 1038710), (95, 830968), (152, 519355), (190, 415484), (241, 327560), (380, 207742), (431, 183160), (482, 163780), (760, 103871), (862, 91580), (964, 81890), (1205, 65512), (1724, 45790), (1928, 40945), (2155, 36632), (2410, 32756), (3448, 22895), (4310, 18316), (4579, 17240), (4820, 16378), (8189, 9640), (8620, 9158)]