393446980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{6689}}^1$

素因数の和:6888

約数の個数: 48

約数和(自身を含む): 880029360

約数和(自身を除く): 486582380

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 173, 340, 346, 692, 865, 1730, 2941, 3460, 5882, 6689, 11764, 13378, 14705, 26756, 29410, 33445, 58820, 66890, 113713, 133780, 227426, 454852, 568565, 1137130, 1157197, 2274260, 2314394, 4628788, 5785985, 11571970, 19672349, 23143940, 39344698, 78689396, 98361745, 196723490, 393446980]

約数ペア:

[(1, 393446980), (2, 196723490), (4, 98361745), (5, 78689396), (10, 39344698), (17, 23143940), (20, 19672349), (34, 11571970), (68, 5785985), (85, 4628788), (170, 2314394), (173, 2274260), (340, 1157197), (346, 1137130), (692, 568565), (865, 454852), (1730, 227426), (2941, 133780), (3460, 113713), (5882, 66890), (6689, 58820), (11764, 33445), (13378, 29410), (14705, 26756)]