164429990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:437

約数の個数: 64

約数和(自身を含む): 328458240

約数和(自身を除く): 164028250

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 191, 197, 230, 382, 394, 437, 874, 955, 985, 1910, 1970, 2185, 3629, 3743, 4370, 4393, 4531, 7258, 7486, 8786, 9062, 18145, 18715, 21965, 22655, 36290, 37430, 37627, 43930, 45310, 75254, 83467, 86089, 166934, 172178, 188135, 376270, 417335, 430445, 714913, 834670, 860890, 865421, 1429826, 1730842, 3574565, 4327105, 7149130, 8654210, 16442999, 32885998, 82214995, 164429990]

約数ペア:

[(1, 164429990), (2, 82214995), (5, 32885998), (10, 16442999), (19, 8654210), (23, 7149130), (38, 4327105), (46, 3574565), (95, 1730842), (115, 1429826), (190, 865421), (191, 860890), (197, 834670), (230, 714913), (382, 430445), (394, 417335), (437, 376270), (874, 188135), (955, 172178), (985, 166934), (1910, 86089), (1970, 83467), (2185, 75254), (3629, 45310), (3743, 43930), (4370, 37627), (4393, 37430), (4531, 36290), (7258, 22655), (7486, 21965), (8786, 18715), (9062, 18145)]