156901240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{479}}^1$

素因数の和:940

約数の個数: 64

約数和(自身を含む): 373248000

約数和(自身を除く): 216346760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 431, 479, 760, 862, 958, 1724, 1916, 2155, 2395, 3448, 3832, 4310, 4790, 8189, 8620, 9101, 9580, 16378, 17240, 18202, 19160, 32756, 36404, 40945, 45505, 65512, 72808, 81890, 91010, 163780, 182020, 206449, 327560, 364040, 412898, 825796, 1032245, 1651592, 2064490, 3922531, 4128980, 7845062, 8257960, 15690124, 19612655, 31380248, 39225310, 78450620, 156901240]

約数ペア:

[(1, 156901240), (2, 78450620), (4, 39225310), (5, 31380248), (8, 19612655), (10, 15690124), (19, 8257960), (20, 7845062), (38, 4128980), (40, 3922531), (76, 2064490), (95, 1651592), (152, 1032245), (190, 825796), (380, 412898), (431, 364040), (479, 327560), (760, 206449), (862, 182020), (958, 163780), (1724, 91010), (1916, 81890), (2155, 72808), (2395, 65512), (3448, 45505), (3832, 40945), (4310, 36404), (4790, 32756), (8189, 19160), (8620, 18202), (9101, 17240), (9580, 16378)]